I can't explain it any different than in the title really

I can't put in workbenches into traders or autotraders
I used to be able to on this same exact world, then I added a few mods and now I can't, on any world with any mods
I've tried deleting my config files
I've went back on an old back-up of the world with the original set of mods (where it worked originally but not anymore)

There's nothing about it in any logs, not server logs/console, not client logs

Any help please?

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