Hi there. I know a ton of us have experienced these same issues. Have you noticed this happening when you are in a location that is maybe using wi-fi or bluetooth? If I am in venues (specifically that use google fiber [2.4ghz]) my connections will fail often, but not always. I have also noticed other scenarios where if I am by a DJ, or just a large speaker that is using bluetooth and not doing a hard plug in I will also have interference issues. But, if I am out in a field, away from wi-fi, bluetooth, etc. I experience no issues at all. I sent in all my flashes last year and canon said they could not "recreate" the issue and then charged me almost $300. They are not addressing this issue at all and seem to just be turning their head the other way. I wish I could say I had a solution, but unfortunately for me, changing channels, IDs, etc. has not helped. The only thing I can do is have an assistant watch my flashes and let me know if there is interference and we have to turn off all the flashes and my trigger to reconnect them. It is very frustrating, but I would say just try to remember from here on out or have someone help you keep an eye on the flashes and then turn them on and off again. We shouldn't have to be doing this with this nice gear, but here we are...
