Nope.. I've downloaded build #249. I'm downloading build #246 right now.
Also, can it be that MultiROM isn't compatible with my bootloader? I'm on 4.18.
4.18 should be fine. 4.13 was the bootloader version that was giving some people problems.
If all else fails, save an error log and post it here for tasssadar. He will be able to help using that.
Sent from my Nexus 7 using xda premium