That your phone is not suitable for more than v2.65 installed supersu
I'm using the Mi Max Pro 128GB. But on my other friends that has also the same phone, it doesn't occur on them even if they flashed the latest version of SuperSu. Is there any thing I can give you like a logcat? To see what causing the problem?
I'm 100% sure that it doesn't occur on my friends because I'm also the one flashing the SuperSu on them.
Just an additional info, even if I tried flashing a different ROM, like Official Stock ROM or Custom ROM, it really corrupt my bluetooth address beyong v2.66 SuperSu.
I'm a technician btw..