ACK! I am so sorry for missing this.
Without drilling into the commit IDs you linked, what branch are you using? Whatever you're doing, make sure you are on the
d32_pro branch. I was actually able to eliminate the need for the proxy entirely with that branch, as well as incorporate a number of fixes.
That branch will become master as soon as LOLIN actually restocks their damn store (or I find an alternative board to use where TiltBridges can be built consistently - ideally with touchscreens - consistently without soldering).