[Bug Report] NDS version Invalid save file

[HadariLiadon]

When im loading gen5 games like black version in works fine, but with soul silver and platinum i'm having this error

I had this problem in version 2.2 and 2.2-7ccd21f

Console (please complete the following information):

• DS/DSi/3DS using a Flashcard
• DSi (Using SD card)
• 3DS (Using SD card)
• Version [v2.2]

Additional context
Just to clarify i'm using a ds lite with a r4i3d flashcard, i don't know if there are big compatibility issues with the ds lite, that's why i'm posting it here. My firmware version is v5 if that's any help.

[Epicpkmn11]

Hmm, are the not-working save files from DeSmuME or DraStic? Check the file sizes and make sure that they're exactly 512 KiB (524,288 bytes), if they're any larger than that you probably need to delete the DeSmuME footer (last 122 bytes) in a hex editor.

It could also maybe be something weird with that flashcard or so, it works on the flashcards I've tried, but I only have a couple. If you can upload the save files I can take a look and see if there's any easy fix.