I was having issues with selecting ASI camera(1) or (2) then getting the correct gain and egain (ordered pair) into the fits header. ( I use two ASI cameras so it seemed right.)
The gain was verified to report correct but the egain would only be reliable after a disconnect reconnect cycle, ie the “double connect” work around. Never did figure out how to report offset, but for me, it no longer matters.
I began using the ZWO camera selection which reports gain and offset correctly but the egain is unreliable for me. The workaround is to ignore egain in the fits header, and if needed, look it up based on the gain.
Great product, Nice work.