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Error after light rebuilding please HELP im really down in the dumps!!!

after i rebuild my lights i get these glitches all over my meshes and i dont understand what im doing wrong!!! i set my light quality to high then hit rebuild. any help would be greatly appreciated. here is a picture of my issue

First off - you have too many overlapping stationary lights. That causes them to become dynamic. To solve that you need to change all lights that you don’t need to cause dynamic shadows to static.
Second - can you show your lightmap UV for these models? You can find it in model viewer on the top panel - there is something like UV icon and you need to open Channel 1.
I think the problem is that you have overlapping UVs.

Your UV’s are overlapping so you need to redo your lightmap UV’s