This is sort of covered here:
Part of the TLE design frees up the pins needed to accesses a SD card. There are several solutions possible. The Log file stores the last line when the encoders take too long to give feedback data.
Most of this in some way has been worked on. @blurfl has done a lot of the hardware work thus far. Moving to new hardware is not quite as easy as just plugging it in, but that is how it comes off by the time it reaches the users. This includes the development efforts of all the people in the development group making improvements every two weeks in the background.
I take this opportunity to thank all of them.
Thank you