I am having a consistent problem when trying to make group selections of attachments inside the viewport. CTRL+tapping the an attachment will deselect all the attachments I had selected. This problem only happens after having selected the first attachment. This only occurs within the viewport. It happens with a mouse as well, but far less often.

I wish an option/mode existed to base selections off of the dimensions of the image itself, rather than some general central area within the image. I don't know if this could be influencing the issue.

Thanks