Just flash with twrp the "DisableForceEncryption" zip after you flashed the rom.
01. So unlock bootloader,
02. flash twrp
03. inside twrp, format data, flash xiaomi.eu rom and the DisableForceEncryption zip and magisk for root if needed.
04. Reboot and wait a few minutes.
05. Succes!
06. Optionel step, When there's a stable official twrp flash it true twrp
For your convenience:
https://drive.google.com/file/d/1As6z5v7NEIfOk67jXHBX34cbnFZdEjy9/view
https://github.com/topjohnwu/Magisk