I found a possible bug. custom villagers with custom trades disappear after I exit the world and back.

Hi, friend! I regret not having the answer, but I would like to know if you managed to solve it, since I also have the same thing, the only thing I know about this problem is that it happens due to the trades, if you realize, when you create a new profession to the villager and not you put trade, it does not give the problem that disappears, but when it has trade, it is when it gives the error.

Ok, I discovered that the error is the plugin (Neoforge Generator), so McReator has nothing to do with this error, I have not found a solution, since the plugin is not stable and has errors, I would recommend you to use Forge, already I tried there and I did not give me the error.