Inconsistency trimming audio clip 26.2.26

Sorry in advance for stealing your time if i’m only seeing ghosts.

With version 26.2.26 (Win 10 22H2), I noticed a change when trimming a 100 MB WAV file. In about 50% of cases, “I” or pulling from the left side of the clip for trimming resulted in the identical waveform — not shortened — but moved to the right the lenght of the trim. I don’t know if the clip was actually shortened or just the waveform displayed incorrectly, because I immediately Ctrl+Z-ed. This occurred at least a dozen times. I trained myself to use “s” and “z” where I needed to trim that clip, which worked most of the time. In some rare cases, “s” also resulted in in that error. Ctrl+Z and a new attempt always resulted in a shortened clip with “s”, sometimes also works with “i”. Has anyone else noticed this in version 26.2.26?

I never encountered this issue in previous versions.

Best, Florian

Edit:
there are recently blank audioclips after trimming. With sound, but no waveform