Problems in Numbers App after upgrading to OS Tahoe

Hi everyone!

After I upgraded my 2 computers to OS Tahoe I noticed that the Numbers app is acting kind of strange.

When I open any Numbers file (either from the finder or from the dock) the file shows up, for a short moment (less than a second) together with the open format side field, and then it quickly disappears.

I am not really sure whether this is intended by Apple, or if this is kind of a bug?

But WHAT I know is, that this is annoying.

Please Apple fix this!

Not to speak about the horrible new UI in Apple Music, it's overall clunkyness now, and now in 2025 still no option to upload artist pictures to get rid of those blank microphones...

I always enjoyed upgrading to the latest operating system, but not this time.