[Bug] problems with platform variants

[Dr4goonD3mon]

Describe the bug
I have diferent folders for many platforms, when added you can't download games for that platform.

To Reproduce
Steps to reproduce the behavior:

1. add the multiple variants of a platform to romm plugin
2. wait to scrape is complete
3. try to install a game
4. See error

Expected behavior
the game should download an be let played

Screenshots