Before Continuing:

• Check you are using the latest version of the mods and its dependencies
• Always include a latest.log if you are crashing
• Remove mod that enhances Minecraft: Optifine, Sodium, others. The issue persists.
• If you are unsure which mod is the culprit.
  Disable all of your mods and enable them 1-2 mods each time to isolate the culprit
• Confirm that there is no existing issue with a similar description submitted in the list of issues.

Version

1.21.1-FABRIC

Supplementaries Version

supplementaries-1.21.1-3.1.2-fabric

Moonlight Lib Version

moonlight-1.21.1-2.18.2-fabric

Describe Issue

Basically the clock block state in the overworld and in the nether has been switched. In the overworld the clock hands rotate in all directions (if right clicked it still displays the correct time) and in the nether the clock hands show the correct time (if right clicked it displays the distorted symbols, as it should). It's a very minor bug, but It pretty much destroys the whole atmosphere, as I see and use this clock all the time in my minecraft world. This issue is very new and I discovered it today. I haven't changed any settings/ deleted any mods since my last time playing, so it shouldn't be a compatibility issue. I have also tried running only the supplementary mod without any other mods and the issue still exists.

Ah, what you might be experiencing is "dimensional time wobble". Sometimes affects clocks from this mod around this particular date and continues till the end of a specific day every year. Unfortunately, there is no known fix, so you either have to wait till the day is up or "time-travel" by updating your clocks. 😹

(If you've read to the end of this comment, then you have wasted your time because you've been pranked. check today's date xD)
Also, if you update your computer's system clock, it will return to normal. The mod dev's just having fun for the day, don't worry.

Indeeed