Yes, sorry, I was backwards on the Dynamic disable. Setting it way up high is correct.
But, you cannot have the MAF DTCs set to No Error. The box checked for MIL or not has no affect on whether the test runs or not, but the drop-down box must be MIL on First Error for the test to run and the code to set and SD to take over. The one you have set to MIL on second means it won't go to SD on the first engine run cycle, it'll wait until you turn the engine off and restart. Not the way you need it to be. You need it to fail the MAF as soon as possible every time the engine starts and runs.
Does it set any other codes when the throttle stops working? Does the throttle quit working with the MAF unplugged? I would like to see a log (and the tune file used) of it with the MAF fail set correctly, and the throttle not working.
You have fuel trims active in that log. That means your wideband data is including what the trims are adding and you are not getting accurate data. Closed loop is disabled however there are points in that log where LTFT goes to +11% or so, not sure how that's possible but it must be fixed. There is another separate drop-down box at Fuel > Open Loop you have missed, STFT Open Loop is still set to Enabled ("If enabled, use STFTs during open loop operation"). At the one spot in the log where it showed some boost it was commanding 10.5 to net 11.6 on the wideband, because the trims are still active.
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I also have to ask... why in the world are you even trying to keep the MAF on a setup like this? Overly complicated plumbing for twin turbos, restrictive, and it would probably run better in pure SD mode after all is said and done anyway.