Sorry for the delay. I just put the latest LE22 nightly on (Jan 02) and the behavior is the exact same: 30 second pause if the delay is set higher than 0.5 seconds.
I’ve also tried a different GUI refresh rate and/or resolution without success. Refresh rate switched to doesn’t affect anything. It happens with both h264 (hardware) and h265 (software) playback.
I’ve noticed on one test in the general logs that the time between “onlostdisplay” and “onresetdisplay” was 55 seconds, and there were no log entries for about 55 seconds until that “onresetdisplay” occurs and the video started. But with debug logging (when everything annoyingly works fine) the time between those two messages was just 2 seconds.
Let me know what I can test and which logs would be useful.