I have no idea why this happens, it doesn't seem to be fixture or showfile specific, but sometimes when I mark a moving light, it will have its iris set to 1 - or the lowest value available. I usually first notice this when I go back into the cue they're meant to be marked for. I've had this problem with Diablos, Perseos, Viper XiPs so I don't think it's anything to do with a fixture profile but I have no idea why this would be happening.
Next time I find it I at least know what to do now and I can send the logs over but I was mainly curious to hear if anyone else had encountered this bug.
This has happened on a Ti, Gio@5, Nomad, Apex 5 and Apex 10
EOS version 3.3.4.21, fixture lib 3.3.5.4 (but I have noticed it for about 6 months)
Any help appreciated!