Help Needed. Active Autowerke tune

Help Needed. Active Autowerke tune

So I am having issues with my tune/car. Have not decided if it is my car or the tune and hoping someone can point me in the right direction.

My car has been stalling at around 3k rpms at mid throttle only. The car starts by stuttering at 2.5 rpms and when it hits 3k it loses throttle. Almost sounds like the car is struggling to fire. Feathering the throttle and full out the car performs as normal. But I use the mid throttle/3k spot most often while driving through the horrible traffic we have here in STL. I have received two different tunes from AA and the car had issues with both. Only issue is the car was throwing different errors from each tune.

First Tune errors (was showing water pump error light when the stall happened):
2f71 e-box fan, input signal
29d1 misfire, cyl 5
29d2 misfire, cyl 6
29d0 misfire, cyl 4
29cc misfire, several cylinders
2d59 dme digital motor electronics, internal failure: control actual torque?

I have not pulled the errors from the second tune (did not have my computer with me this week when the errors happened. I will grab them asap). The error shown on the car is the brake failure light. Same throttle issue though. If I pull over and restart the car, the error and issue go away (until the next time).

I know that I will not get to the root of the issue without getting it diagnosed, but has anyone heard/had this type of issue? With or without the tune?

Any thoughts or help is appreciated.

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Help Needed. Active Autowerke tune