To all intents and purposes, this rom has stopped working. Gradually fewer applications would run, now both alexa, and amazon music and folder player fail to run (force close on start). I am assuming that these have updated from google play and are now incompatible with the ROM (or more likely google play services) which has not been updated.
Wish I had stuck to the stock firmware really, but no way to go back. Vanku PX6 which is yet another rebrand of a generic chinese head unit - Pumpkin etc look the same.
Worth trying an alternative rom and if so, which one, or should I cut my losses, toss it in a skip and buy something new?