Break Sun Position Data - Weird Float

No.
It’s 100% related since you are using mod to figure out your time/hours. And you are also likely on some 5.x version of the engine.

Don’t discount it simply because your limited testing worked. There are definitely bound to be instances where it won’t. Until they patch it and stabilize things at least (like 2027 ish I predict).

The rest is more of an explanation as to why you do not see people complaining about it. It’s not something you want to use at runtime. And it’s also not something that is widely used in game setups just in general, so very limited amount of users compared to other things.