I can confirm that we are experiencing the same issue with our custom main menu mod on The Northmen's DayZ servers since the 1.30 update.
Our main menu uses a custom MP4 video as the background, which worked correctly prior to DayZ 1.30.
Our setup:
Custom main menu implemented through a client-side mod.
Background video stored within the mod.
Video playback controlled through the main menu scripts and configuration.
mainmenuconfig.json has m_EnableVideo set to 1 and m_IsVideoWithSound set to 1.
Running at 1920×1080 resolution.
Observed behavior:
The custom main menu loads and functions normally, but the background video no longer plays. The video file and configuration remain in place, and the issue appeared following the 1.30 update.
This appears consistent with the VideoWidget playback regression described in this ticket.
We have not yet isolated the exact failing function in our mod, but the timing and symptoms strongly suggest the same underlying issue.
Hopefully this additional report helps confirm the impact on custom main menu implementations.