@Late Hopefully you didn't load the mods one by one! One strategy is to load half your mod list on each test. This way, you can use the power of exponents to quickly find the culprit. Out of 100 mods, load 50 in list A, 50 in list B. Whichever one does not, you just cleared 50 mods. Whichever one still generates the errors in question, cut in half and repeat with 25+25 mods, etc.

Specific mod interactions/conflicts are an exception to this.

One of the mods i use got updated (Not yours) and filled my screen with red errors. I had to reload all 421 mods to find the culprit. This mod was a lifesaver. Many thanks

Yes.

Where do they appear? In the loading screen tips?