Thomas,
I reply to this in another thread but it is probably best to continue the discussion here, so I copy my message:
This is probably the fix for this issue that is the cause for your problem:
www.indilib.org/forum/general/4707-asi29...sue-3x3-and-4x4.html
In the solution Jasem say:
What changed in the driver is that it now strictly obeys that width % 8 must be zero
If I take the number for your camera:
- it start with a size of 5496, corresponding to width max.
- you ask for bin 4x4 : 5496/4 = 1374
- but 1374/8 = 171.75 , to respect the condition "width % 8 must be zero" it set the width to 171*8 = 1368
- Indi frame size are always unbinned so it is set to 1368*4 = 5472
- when you return to bin 1x1 it keep this size of 5472 making your new images not compatible with the first series.
I not use an ASI camera myself so it is difficult for me to try to fix that.