I too had exit problems with all the most recent versions of pbx and vpx/pinmame..
For now I am using 10.80 rev 1995 and pbx 6.11(something newer might work but I had 6.11 installer handy) and everything is working perfectly. Between new versions of windows builds, vpx betas and more there are just so many variables right now , very confident it will all be back to normal sooner than later.