Thank you a lot for a reply!
I'll try to fix it soon (it's time to buy EZ Flash DE).
This is an issue with resolving SRAM/Flash saves, jfyi.
If you have some time, write to me on Discord (the same username as I have) or Telegram - let's try to solve the problem together, while I haven't received the cartridge yet :)
Also, any information can be useful:
Thx in advance!