Why do full-width galleries leave a blank space when collapsed ?

This is an issue I’ve had to work around multiple times on my site, and figured I’d finally approach it head on. Across my site, I’ve got numerous instances where collapsed strips are used. They collapse & expand at the click of a button with no issue at all.

However, the same cannot be said if I try to collapse a Wix Showcase strip or any full width pro gallery. When I attempt this, despite it working flawlessly on my preview site, the live site displays a large blank space in place of the collapsed gallery strip.

Is there any work around? Am I missing something, or is this a glaring oversight on Wix’s part? I can’t seem to find anything else about this. I’ve not included a link to my site as I’ve removed all instances and worked around the issue. Regular strips work fine.

Thanks in advance,
Best,
Matt