I tested this without TMXL, seems like it worked just fine with Content Patcher replacing it. This is only in reference to the mods LNH's Mini Farm & Tiny Farm. It's worth testing any other mods you have that need this. Just remove TMXL, and download Content Patcher instead (if you don't already have it).
For anyone searching for solution to run NPC mods - try editing manifest.json TMXLoader version to something like "Version": "1.24.4", - SMAPI still gives an error, that it could not load the mod, but my npc mod started working anyway. No guarantee, but worth a try.
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The line "Version:" and put "1.24.4"
In my case, that worked.
Well wishes and prosperity for you!
Thank you so much for the help! <3