Dynamax gym battles doesn't work and I instantly lose the battle.

Alcremie Extreme hills+ pattern doesn't seem to work. I tried evolving milcery to alcremie in the extreme hills+ biome and it didnt work.

Registering gym badges in the cases got rid of all my gym badges.

Thief move can't steal items from the new pokemon and neither from Genesect. I dont know if this is to prevent easy grinding but I CAN steal the lunarizer and solarizer from necrozma but not the drives from Genesect. Also Thief doesn't seem to work in the galar pokemon, I can't get the apples item from applin. Alcremie also doesn't give away the sweets, but if you catch it sometimes it will appear as a hold item.

Mint cuttings stopped appearing with forage and mints doesn't give back mint cutting either.

Thanks for the time to listen to my report. I didn't take screenshots unfortunately.

Please make sure to follow the guidelines when creating a ticket. There should only be one bug per ticket and that bug would preferably have enough information and not be a duplicate. The bug about Alcremie is already known and what you described about the mint cuttings doesn't seem to be a bug, as they are naturally very rare from forage and mints aren't supposed to give back mint cuttings when used. As for the other 3 issues you mentioned, please create a separate ticket for them with adequate details (most notably the gym badges and dynamax issues are lacking details and would thus be very hard for us to test or fix). Thanks.