My apologies as I am pretty sure I recall a similar issue discussed but I can’t seem to find the relevant thread. So, to sum up, I am trying to understand why the pop bumpers will fire during initial boot up but not during test mode or game play on TAF. F104 was blowing intermittently and appears to have been related to a stuck switch which has since been adjusted. Unfortunately now none of the violet - orange solenoids will test fire in diagnostics or game play but do during boot up. Any thoughts on where to go next in my diagnostics? Thanks in advance!