[Q] stuck at boot cm12.1 ?

Hi all,

I have a unlocked m8 here. I can flash and boot sense based roms (like insertcoin etc.) just fine but when i try cm12.1 for example i get stuck a bootloop i have tryed cm12.1/candy5/euphoria with and witout diferent gapps. Also tried to wipe with advanced setting and just a factory reset. I'm using twrp 2.8.7.0.

Does someone know what to do? Thanks!