Inoperative version 2.1.6 on windows 7
For any changes to quest, Creature, game object, item, no changes are made to the database, there are no errors, no spontaneous program closure, it simply does not sync to the database, although there is a connection to the database. Tested on version 2.1.2 (before that I did not update the program, although I realized that half of the functions did not work due to incompatibility with the new database) changes are saved there.
could you record a gif or video af your actions? what sql version used?
Version 20071, this error occurs when connecting to the database. Tried it on any databases, similar error.

I apologize in advance, but I found the similarities of all the errors with the article of the previous writer, and I think that this is not a problem in the databases and not in the version of the operating system, perhaps something is missing in the required programs for truice to work. But I didn't find a solution to my problem in the FAQ.
I see you use rustemu and some old rev from year 2018. Is it based on TrinityCore and db structure is the same? I wont be able to repeat as I dont have your db.