Click on Screen Options > Classic View to navigate to wp-admin
Create a new post/page/portfolio
Add a Gallery block, and select images to insert into the gallery. Click Create a New Gallery > Insert Gallery to insert.
Click the "media library" option (below the gallery) to insert a new image
See that the "Add to gallery" option is selected on the left side of the window, but the currently inserted images still appear
Select one or more images to add to the gallery, and click "Add to gallery"
See that only the newly selected images appear on the next screen.
Click "Update gallery." See that only the newly selected images are in the gallery now.
What I expected to happen
The "Add to Gallery" tab shouldn't display the images already in the gallery.
Selecting new images shouldn't overwrite the current gallery, but add to it as described.
What actually happened
See above.
Context
30791625-hc
User had difficulty inserting a missing photo into their gallery without removing the other images.
Browser / OS version
Any.
Is this specific to the applied theme? Which one?
No.
Does this happen on simple or atomic sites or both?
Both. Must be in wp-admin view first.
Is there any console output or error text?
No.
Level of impact (Does it block purchases? Does it affect more than just one site?)
Low?
Reproducibility (Consistent, Intermittent) Leave empty for consistent.
Screenshot / Video: If applicable, add screenshots to help explain your problem.
When inserting new images, click the "Edit gallery" tab first, then go back to the "Add to Gallery" tab. The images already in the gallery should disappear from this view, and selecting new images then adds them in, rather than using only these images.
Steps to reproduce the behavior
What I expected to happen
The "Add to Gallery" tab shouldn't display the images already in the gallery. Selecting new images shouldn't overwrite the current gallery, but add to it as described.
What actually happened
See above.
Context
30791625-hc
User had difficulty inserting a missing photo into their gallery without removing the other images.
Browser / OS version
Any.
Is this specific to the applied theme? Which one?
No.
Does this happen on simple or atomic sites or both?
Both. Must be in wp-admin view first.
Is there any console output or error text?
No.
Level of impact (Does it block purchases? Does it affect more than just one site?)
Low?
Reproducibility (Consistent, Intermittent) Leave empty for consistent.
Screenshot / Video: If applicable, add screenshots to help explain your problem.
https://user-images.githubusercontent.com/5630717/127691597-8193c400-bcee-41e5-95d7-aeeec0153612.mp4
Workaround shown in the video above:
When inserting new images, click the "Edit gallery" tab first, then go back to the "Add to Gallery" tab. The images already in the gallery should disappear from this view, and selecting new images then adds them in, rather than using only these images.