.DSV and .GCI Files Corrupting as soon as I use PKHeX

[coooooooops]

Hi hopefully this is a simple fix. I've been using PkHeX and Wine because I'm a Mac user, and while it has been working flawlessly for Emerald, and FRLG .sav files - as soon as I put in a .dsv or .gci file to edit and then export back the save file just restarts my game and then I can't put it back into PkHeX, getting the message "either the file is too big or it has been corrupted". I've tried converting the .dsv to a .sav, but this did not remedy the issue. Hope someone can help me out. 

 

If I can provide any additional info to help with troubleshooting let me know.

Edited 15 hours ago by coooooooops

[Atrius97]

Could you upload examples of the savefiles, specifically the unmodified savefile, and again after opening it and saving in PKHeX?
Recording a short video clip showing the process from start to finish could also help identify any mistakes you're making along the way that's causing the corruption, if any.
It's hard to know what's happening without being able to see the steps you're taking, or having the files for comparison.