Nope, just swipe lock now and also before.
I’ve seen issues with the stopwatch and/or timer before as well, which originally lead me to believe that timers or timer interrupts were somehow involved. However, my meditation app has not once failed to time its ring properly, so maybe it’s not that and it’s the fact that the alarm, stopwatch and timer use animations and/or fast screen updates maybe… Might also be that there’s multiple unrelated issues, of course.
What do you mean by “Interval” function of the stopwatch? The lap function?
Furthermore, to explore the overheating theoary, I tried running the “CPU throttling test” app, which ran without problems (core temps around 70-80° and 60% throttling, but no display artifacts or crashes). Might be that this just loads the CPU, not GPU, of course.
Next, I tried disabling animations, which allowed the alarm to work ok 3 out of 3 attempts, but then I re-enabled animations, and the alarm also worked ok 4 out of 4. I wonder if the charge level is relevant here, since the CPU test drained my battery from full to 79% (and the alarm problem usually occurs when my phone has been charging all night). I’ll fully charge my battery and see if that helps to reproduce the problem (though I’m pretty sure I’ve seen the screen artifacts also when the battery was not fully charged during normal operation during the day).
Update: Charged up to 90% (green charging light) and tried again, clock crashed again immediately two times (though without display artifacts this time). Then once (down to 89% now) artifacts where visible, but the clock didn’t crash. Then once more crash without artifacts…
Then disabled animations, and alarm worked without problems 3 times (battery 87%). Re-enabled animations, crash without artifacts once, no crash once, another crash without artifacts (battery 86%). One more crash without artifacts at 83%.