Edmondsley How do I tell if the drawer is a version 1 or 2?
Check the filter drawer with a filter holder.
The filter holder in the new version seats inside the filter drawer body (and thus blocks stray light). With the filter holder inserted, the entire curved top part of the filter holder is perfectly flush with the filter drawer body.
The top part of the holder from the older version curves and seats around the outside of the filter drawer body. That is where the light leaks happen.
There has been at least three versions of the ZWO filter drawer by the way. The filter drawer of the first two versions appear identical to one another, and will accept filter holders from either of the earlier two older versions. I think they were both called version 1 today, to distinguish from version 2 that has the incompatible filter holder.
Chen
