i have one T17, and contain CGMINER + BMMINER to ! original firmware, i have examined this, and, CGMINER is used only for running hashing, and BMMINER is user for booting / rebooting or apply config...
So, no problem, just stipide bitmain, mixed two version... if you delete only BMMINER, miner run good, but you don't want apply new config (pool for exemple) ... the code is mixed ...