1 day ago i minted 1 nft via beta.gem.xyz. Next time when i try it's given me an error while mint again. Today i see that i can mint 100 nft in 1 transaction, so i click mint and my transaction go good, but i didn't get any nft and lost my 5$ in eth for nothing. Now it show that i can mint 50 nft. you must disable mint option when people have or mint 1 to prevent losing funds.