MIX 2 MIUI 10 Stable bootloop

Mar 25, 2018
Hi Community,
since the new Stable version of Xiaomi.eu released i decided to update (i was on the last stable i guess MIUI9).
so i updated my TWRP to the newest version from twrp.me and flashed the stable rom.

Since it takes ages an i only see the MIX logo. after i flashed dm verity and disable forced encryption i see the logo for a long time and aterwards it boots back to twrp recovery.

what did i miss while upgradeing my MIX2 from Stable MIUI9 to Stable MIUI10?

with kind regards