Thanks Ace
After reviewing your flashfxp.ini I have determined the cause of the problem and it has been resolved.
If the entry build=X doesn't exist under [main] the auto update fails because X becomes = 0 which is ignored.
to solve the problem you can manually add the entry or update the associations.
[main]
build=835
The build number must be no higher than 835. this will catch you up to date on all other updates that you may have missed.