After starting my TS5 client (Beta 74 on Windows 10), there was a blue screen (background colour of the client itself) and the loading symbol. A few minutes later the client crashed and I had to open it several times again until it worked.
[2023-05-14 20:54:48.634] [info] Notifications_Windows ctor
[2023-05-14 20:54:48.665] [info] TeamSpeak Client 5.0.0-beta74 (2023-05-09 10:19:10)
[2023-05-14 20:54:48.666] [info] SystemInformation: Windows 10 (19044) x64 (AMD or Intel) Binary: 64bit
[2023-05-14 20:54:49.047] [debug] WebSockets Server started successfully
[2023-05-14 20:54:50.470] [info] disconnected from push system.
[2023-05-14 20:54:55.207] [info] connected to push system.
[2023-05-14 20:54:59.211] [debug] WAS::openDevice-enter - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:54:59.223] [trace] Mix Format: SRate:48000 Bitrate: 32 Channels: 2 - Kopfhörer (Razer Audio Controller - Chat)
[2023-05-14 20:54:59.223] [trace] Initializing with mix format. - Kopfhörer (Razer Audio Controller - Chat)
[2023-05-14 20:54:59.269] [info] Initialized with 2 channels in 32bit, 48kHz. - Kopfhörer (Razer Audio Controller - Chat)
[2023-05-14 20:54:59.270] [trace] WAS Buffer size: 1056 - Kopfhörer (Razer Audio Controller - Chat)
[2023-05-14 20:54:59.270] [debug] WAS::openDevice-leave - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:54:59.270] [debug] WAS::startDevice-enter - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:54:59.272] [debug] WAS::startDevice-leave - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:54:59.272] [debug] WAS::openDevice-enter - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:54:59.274] [trace] Mix Format: SRate:48000 Bitrate: 32 Channels: 2 - Kopfhörermikrofon (Razer Audio Controller - Chat)
[2023-05-14 20:54:59.274] [trace] Initializing with mix format. - Kopfhörermikrofon (Razer Audio Controller - Chat)
[2023-05-14 20:54:59.307] [info] Initialized with 2 channels in 32bit, 48kHz. - Kopfhörermikrofon (Razer Audio Controller - Chat)
[2023-05-14 20:54:59.307] [trace] WAS Buffer size: 1056 - Kopfhörermikrofon (Razer Audio Controller - Chat)
[2023-05-14 20:54:59.307] [debug] WAS::openDevice-leave - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:54:59.308] [debug] WAS::startDevice-enter - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:54:59.328] [debug] WAS::startDevice-leave - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:54:59.328] [info] Connecting to community.voice.teamspeak.com:9987
[2023-05-14 20:54:59.328] [info] Trying to resolve to community.voice.teamspeak.com:9987
[2023-05-14 20:55:08.284] [info] SRV DNS resolve unsuccessful, "_tsdns._tcp.teamspeak.com" Domain name not found
[2023-05-14 20:55:08.286] [info] SRV DNS resolve successful, "_ts3._udp.community.voice.teamspeak.com" =(h: communityvoice.teamspeak.com p:9988)
[2023-05-14 20:55:08.291] [info] A/AAAA DNS resolve unsuccessful, "community.voice.teamspeak.com" DNS server returned answer with no data
[2023-05-14 20:55:08.292] [info] A/AAAA DNS resolve for possible TSDNS successful, "voice.teamspeak.com" =(h: 188.34.179.24 p:0)
[2023-05-14 20:55:08.295] [info] A/AAAA DNS resolve for possible TSDNS successful, "teamspeak.com" =(h: 104.22.26.164 p:0)
[2023-05-14 20:55:10.298] [info] TSDNS queried unsuccessfully 188.34.179.24:41144
[2023-05-14 20:55:10.298] [info] No TSDNS found
[2023-05-14 20:55:10.298] [info] TSDNS queried unsuccessfully 104.22.26.164:41144
[2023-05-14 20:55:10.298] [info] No TSDNS found
[2023-05-14 20:55:11.549] [info] A/AAAA DNS resolve successful, "communityvoice.teamspeak.com" =(h: 188.34.179.24 p:0)
[2023-05-14 20:55:11.550] [info] Connecting to resolved address 188.34.179.24:9988
[2023-05-14 20:55:13.165] [info] server sent ciphers:1
[2023-05-14 20:55:13.197] [info] server sent ciphers:1
[2023-05-14 20:55:13.912] [info] server sent ciphers:1
[2023-05-14 20:55:14.030] [info] Selected cipher:0
[2023-05-14 20:55:14.030] [trace] Puzzle solve time: 5
[2023-05-14 20:55:14.033] [info] Selected cipher:0
[2023-05-14 20:55:14.033] [trace] Puzzle solve time: 5
[2023-05-14 20:55:18.644] [info] starting download for http://update.teamspeak.com/windows/x64/latest/info.json
[2023-05-14 20:55:37.837] [debug] WAS::associateAECDevice-enter - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.837] [debug] WAS::associateAECDevice-leave - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.838] [debug] WAS::stopDevice-enter - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:55:37.838] [debug] WAS::stopDevice-leave - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:55:37.838] [debug] WAS::closeDevice-enter - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:55:37.838] [trace] DeviceDeleteList::queue_device_delete - enter: Kopfhörer (Razer Audio Controller - Chat) - DeviceDeleteList
[2023-05-14 20:55:37.838] [trace] DeviceDeleteList::queue_device_delete - leave: Kopfhörer (Razer Audio Controller - Chat) - DeviceDeleteList
[2023-05-14 20:55:37.838] [debug] WAS::closeDevice-leave - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:55:37.838] [trace] DeviceDeleteList::clear_queue - enter - DeviceDeleteList
[2023-05-14 20:55:37.838] [trace] DeviceDeleteList::wait_for_deletes - enter - DeviceDeleteList
[2023-05-14 20:55:37.839] [trace] Waiting for device to close - DeviceDeleteList
[2023-05-14 20:55:37.864] [trace] DeviceDeleteList::clear_queue - leave - DeviceDeleteList
[2023-05-14 20:55:37.864] [trace] DeviceDeleteList::wait_for_deletes - leave - DeviceDeleteList
[2023-05-14 20:55:37.864] [debug] WAS::openDevice-enter - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:55:37.867] [trace] Mix Format: SRate:48000 Bitrate: 32 Channels: 2 - Kopfhörer (Razer Audio Controller - Chat)
[2023-05-14 20:55:37.867] [trace] Initializing with mix format. - Kopfhörer (Razer Audio Controller - Chat)
[2023-05-14 20:55:37.901] [info] Initialized with 2 channels in 32bit, 48kHz. - Kopfhörer (Razer Audio Controller - Chat)
[2023-05-14 20:55:37.901] [trace] WAS Buffer size: 1056 - Kopfhörer (Razer Audio Controller - Chat)
[2023-05-14 20:55:37.902] [debug] WAS::openDevice-leave - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:55:37.902] [debug] WAS::startDevice-enter - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:55:37.903] [debug] WAS::startDevice-leave - {0.0.0.00000000}.{0ecc1b44-cde9-40b3-9cee-a2a026cc37c7}
[2023-05-14 20:55:37.903] [debug] WAS::stopDevice-enter - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.903] [debug] WAS::stopDevice-leave - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.903] [debug] WAS::closeDevice-enter - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.904] [trace] DeviceDeleteList::queue_device_delete - enter: Kopfhörermikrofon (Razer Audio Controller - Chat) - DeviceDeleteList
[2023-05-14 20:55:37.904] [trace] DeviceDeleteList::queue_device_delete - leave: Kopfhörermikrofon (Razer Audio Controller - Chat) - DeviceDeleteList
[2023-05-14 20:55:37.904] [trace] DeviceDeleteList::clear_queue - enter - DeviceDeleteList
[2023-05-14 20:55:37.904] [debug] WAS::closeDevice-leave - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.904] [trace] DeviceDeleteList::wait_for_deletes - enter - DeviceDeleteList
[2023-05-14 20:55:37.904] [trace] Waiting for device to close - DeviceDeleteList
[2023-05-14 20:55:37.912] [trace] DeviceDeleteList::clear_queue - leave - DeviceDeleteList
[2023-05-14 20:55:37.912] [trace] DeviceDeleteList::wait_for_deletes - leave - DeviceDeleteList
[2023-05-14 20:55:37.913] [debug] WAS::openDevice-enter - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.914] [trace] Mix Format: SRate:48000 Bitrate: 32 Channels: 2 - Kopfhörermikrofon (Razer Audio Controller - Chat)
[2023-05-14 20:55:37.914] [trace] Initializing with mix format. - Kopfhörermikrofon (Razer Audio Controller - Chat)
[2023-05-14 20:55:37.933] [info] Initialized with 2 channels in 32bit, 48kHz. - Kopfhörermikrofon (Razer Audio Controller - Chat)
[2023-05-14 20:55:37.933] [trace] WAS Buffer size: 1056 - Kopfhörermikrofon (Razer Audio Controller - Chat)
[2023-05-14 20:55:37.933] [debug] WAS::openDevice-leave - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.934] [debug] WAS::startDevice-enter - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.971] [debug] WAS::startDevice-leave - {0.0.1.00000000}.{62c91147-1f06-4c47-9b3b-68cb4899f2d4}
[2023-05-14 20:55:37.972] [info] Connecting to community.voice.teamspeak.com:9987
[2023-05-14 20:55:37.972] [info] Trying to resolve to community.voice.teamspeak.com:9987
[2023-05-14 20:55:38.994] [info] SRV DNS resolve unsuccessful, "_tsdns._tcp.teamspeak.com" Domain name not found
[2023-05-14 20:55:38.994] [info] SRV DNS resolve successful, "_ts3._udp.community.voice.teamspeak.com" =(h: communityvoice.teamspeak.com p:9988)
[2023-05-14 20:55:39.683] [info] A/AAAA DNS resolve unsuccessful, "community.voice.teamspeak.com" DNS server returned answer with no data
[2023-05-14 20:55:39.684] [info] A/AAAA DNS resolve for possible TSDNS successful, "voice.teamspeak.com" =(h: 188.34.179.24 p:0)
[2023-05-14 20:55:39.684] [info] A/AAAA DNS resolve for possible TSDNS successful, "teamspeak.com" =(h: 172.67.38.140 p:0)
[2023-05-14 20:55:41.495] [info] A/AAAA DNS resolve successful, "communityvoice.teamspeak.com" =(h: 188.34.179.24 p:0)
[2023-05-14 20:55:41.496] [info] Connecting to resolved address 188.34.179.24:9988
[2023-05-14 20:55:41.699] [info] TSDNS queried unsuccessfully 188.34.179.24:41144
[2023-05-14 20:55:41.699] [info] No TSDNS found
[2023-05-14 20:55:41.699] [info] TSDNS queried unsuccessfully 172.67.38.140:41144
[2023-05-14 20:55:41.699] [info] No TSDNS found
[2023-05-14 20:55:42.877] [info] server sent ciphers:1
[2023-05-14 20:55:43.983] [info] server sent ciphers:1
[2023-05-14 20:55:44.735] [info] server sent ciphers:1
[2023-05-14 20:55:46.046] [info] Connecting to konsoleros.community:9987
[2023-05-14 20:55:46.046] [info] Trying to resolve to konsoleros.community:9987
[2023-05-14 20:55:46.540] [info] Selected cipher:0
[2023-05-14 20:55:46.540] [trace] Puzzle solve time: 6
[2023-05-14 20:55:48.475] [info] SRV DNS resolve unsuccessful, "_tsdns._tcp.konsoleros.community" Domain name not found
[2023-05-14 20:55:48.475] [info] SRV DNS resolve unsuccessful, "_ts3._udp.konsoleros.community" Domain name not found
[2023-05-14 20:55:48.475] [info] A/AAAA DNS resolve successful, "konsoleros.community" =(h: 88.198.34.252 p:0)
[2023-05-14 20:55:50.254] [info] A/AAAA DNS resolve for possible TSDNS successful, "konsoleros.community" =(h: 88.198.34.252 p:0)
[2023-05-14 20:55:52.266] [info] TSDNS queried unsuccessfully 88.198.34.252:41144
[2023-05-14 20:55:52.266] [info] No TSDNS found
[2023-05-14 20:55:52.267] [info] Connecting to resolved address 88.198.34.252:9987
[2023-05-14 20:55:54.148] [info] server sent ciphers:1
[2023-05-14 20:55:54.630] [info] server sent ciphers:1
[2023-05-14 20:55:58.388] [info] Selected cipher:0
[2023-05-14 20:55:58.388] [trace] Puzzle solve time: 6
[2023-05-14 20:56:02.483] [critical] Assertion "client" failed at C:\builds\hxz19fiJ\0\teamspeak\teamspeak_client_ui_v2\deps\teamspeak_client_lib\src\serverconnectionhandler.cpp:2599;
Since the client wasn’t running so long, I uploaded the whole log.
Regards