MiniDumpFixer64.exe does not update my dump file

My company uses VmProtect 3.3.1 to protect our files.
Some users are reporting crashs and I was trying to debbug what was happening.
I used the MiniDump Fixer tool, and it shows me

DMP file sucessfully updated.

But my dmp file keeps the same.
Im using like this:

MiniDumpFixer64.exe  "path_to_mdmp" "path_to_unprotected_dll"

But my dmp file keeps the same.

Why do you think so? Did you compare files by contents?

The file dont get modified, i can see it by the windows last modified date.

MiniDumpFixer doesn’t change last modified date, so you have to compare files by content.