Weird issue with firmware 1.14 - 2nd Gen Pokémon Games not working or saves deleted.

Hi everyone. I've had my fpgbc for two weeks now, it came with firmware 1.10 out of the box and my original spanish Pokémon games - crystal and silver - were working just fine. I decided to buy a flashcard so bought one from aliexpress and got it in the mail today.

Sadly, the flashcard didn't work on firm 1.10 so I had to resort to try for new firms. In 1.08, Pokémon games work and flashcard doesn't, so I tried 1.14.

To my delight, my flashcard boots games perfectly fine in last firmware, however my original Pokémon games don't.

Silver get's stuck after the press start title screen and music kind of freezes.

Crystal directly has my saves 'deleted'. HOWEVER, if I return to firmware 1.10 my saves are back on my card, which I find astonishing. Has anyone experienced this? What should I do?

Thanks!

-- EDIT--

Just tried 1.10 again (the original non Game Boy logo and the one with the original logo) and things just... work. My original Pokémon games have their saves and the flashcard boots perfectly fine so in case you have this same problem, just use the V1.1 240625 file.