I have noticed the following issues:
- Arrow buttons don’t change time when setting alarm. When setting the time for a new or existing alarm, the arrow buttons above and below the hour and minute values are supposed to increase and decrease the values respectively. But nothing happens when I click any of them. I created bug report 524022 for this.
- Section containing links for contribution disappear after clicking on them. When attempting to report the bug above, I noticed that section containing links for donations, getting involved and reporting bugs disappear if I switch to a different page. It comes back when I close KClock and launch again. I’m not sure if this is a feature, so I haven’t created a bug report for this.
Here’s a screen recording of both issues:

I’m using Nobara 44 and it didn’t come with KClock when I installed it 4 years ago. I installed the clock recently with dnf, so if there’s something wrong with my KClock installation, please let me know.