We had an hour of dead air between 2am EDT and 2am EST. The tracks between 1am EDT and 2am EDT played properly, and were marked in the track list as played (dimmed). Then the clock set back to 1am EST, but LibreTime did not play those tracks again, indicating there was no scheduled content. I was not able to cancel the scheduled program (it had already played), and was not able to insert new track in the current stream. Once the time reached 2am EST the playout resumed of the scheduled tracks.
I’m running a version from March 2020, labelled “6ac31f3a1” in the “Settings, Status” screen. I’m just recording this behaviour here, I’ll install a more up-to-date version and test to verify this before filing an actual bug report.
In addition, the calendar shows a strange overlap of shows at that time (screenshot below). The show at 1am should be only one hour long, but shows as two hours on the calendar. I’m not sure if this is a symptom of the DST problem, or if it’s a different problem. I’ve seen this kind of overlap before when doing some complex scheduling such deleting single instances, and scheduling shows in alternate weeks.