Glad I could be of help with this post, even after some months :D
I think I eventually got it by seeing some picture of the "data" tab somewhere, because I was just blind it seems.
Was my first time directly editing with HeidiSQL.
Sometimes it's just like that, troubleshooting for hours until I...
Hi everone,
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EDIT: Issue is solved. Turns out I'm an idiot ;)
I changed the default values in the database, and not the actual data itself. Going to the tab "Data" in HeidiSQL let me edit the actual values.
Works flawlessly now...