Periodically error: CupertinoStreamer: Stream not found. What's happened?

Wowza Streaming Engine
1

Hello! Periodically (1 time in 2-3 days) I get an error: HTTPStreamerAdapterCupertinoStreamer.onPlaylist: Stream not found (in WowzaEngine log).

2023-03-25
08:43:24
comment
server
HTTPStreamerAdapterCupertinoStreamer.onPlaylist: Stream not found [stream_name/live/default.m3u8]: live
x-duration:4.908

We are use vMix with Wowza. Without Transcoder.
After a WowzaEngine reboot everything is fine. Unfortunately, the logs does not contain more detailed information than this is caused.
In vMix I see just this error message:

FFMPEG1.Exited
Streaming
[rtmps @ 056afe80] Cannot open connection tls://example.com:1935
rtmps://stream:****@example.com:1935/stream_name/live: Unknown error

    Last message repeated 1 times
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (85% of size: 128000000 [rtbufsize parameter])! frame dropped!
    Last message repeated 1 times
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (87% of size: 128000000 [rtbufsize parameter])! frame dropped!
    Last message repeated 1 times
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (89% of size: 128000000 [rtbufsize parameter])! frame dropped!
    Last message repeated 1 times
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (92% of size: 128000000 [rtbufsize parameter])! frame dropped!
    Last message repeated 10 times
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (94% of size: 128000000 [rtbufsize parameter])! frame dropped!
    Last message repeated 1 times
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (97% of size: 128000000 [rtbufsize parameter])! frame dropped!
    Last message repeated 4 times
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (99% of size: 128000000 [rtbufsize parameter])! frame dropped!
    Last message repeated 1 times
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (102% of size: 128000000 [rtbufsize parameter])! frame dropped!
    Last message repeated 75 times
[rtmps @ 056afe80] Cannot open connection tls://example.com:1935
rtmps://stream:wb4i6t729nBv5iP74A3j@example.com:1935/stream_name/live: Unknown error
[dshow @ 020c7aa0] real-time buffer [vMix Video YV12] [video input] too full or near too full (102% of size: 128000000 [rtbufsize parameter])! frame dropped!

I really hope for your help.

2

@d398ac7fcdd6da5e9d41

It would be best to open a support ticket to have one of our Support Engineers review this HLS issue:

They will need full vMix logs, stream name effected, and the below Wowza Streaming Engine directories for review:
[install-dir]/conf
[install-dir]/logs