I think I know what is happening, goes back to an earlier post https://www.gimp-forum.net/Thread-How-to-merge-channels where you are
I'm doing a quick mask and kept "saving to channel" to make sure I wasn't losing anything..
Not the way to do it. Use a quickmask (or some other selection tool) to create a selection and save that selection as a channel.
Then you need to be aware of where you are
If you export an image be on an active layer in the layers dock.
Channels can save individual selections and can combine (or subtract) to restore at a later date, providing you SAVE as a Gimp .xcf file.
Not the best I have ever done but trying to explain here: https://youtu.be/fftRiOUwxAc Duration 4 and a half minutes Hope it helps.
I'm doing a quick mask and kept "saving to channel" to make sure I wasn't losing anything..
Not the way to do it. Use a quickmask (or some other selection tool) to create a selection and save that selection as a channel.
Then you need to be aware of where you are
If you export an image be on an active layer in the layers dock.Channels can save individual selections and can combine (or subtract) to restore at a later date, providing you SAVE as a Gimp .xcf file.
Not the best I have ever done but trying to explain here: https://youtu.be/fftRiOUwxAc Duration 4 and a half minutes Hope it helps.