QuickLook is flickering on Mac OS

Integration Affected
Finder
Device
MacBook Air, M3, 16GB RAM
Operating System/Browser (if using the web)
macOS Tahoe 26.2
Dropbox App Version (if using the app)
242.3.5699

Question or Issue

I have been having the same issue as described in this thread for at least 1 month. It makes Quick Look (and therefore Finder) really awful to use. If you try to QuickLook or preview a pdf, image, etc. the quicklook state resets and refreshes. For example, I navigate in Finder to a pdf in my dropbox. I press SPACE to quicklook the item. I scroll down the PDF. The QuickLook resets/refreshes and I lose my place in the document. There is a huge impact on everyday tasks.

Troubleshooting efforts:

1. I viewed this topic and followed the suggestions there. It did not help.
2. If I quit the Dropbox app, the issue persists.
3. I found something really interesting. If I look at the Path Bar at the bottom of Finder, the folder icons keep changing several times per second (matching the flickering in QuickLook). Sometimes the icons in the Path Bar show as blank gray squares with dashed outlines or Green folders with check marks. It appears that these mini icons  are constantly changing. If I disable the Path Bar, then the flickering stops in the quicklook. Again this happens in the Dropbox section of Finder, and not elsewhere. I've shown an example of the two options I see flicker on the Path Bar. Again the file previews and quicklooks flicker also, which is more problematic. I point out the Path Bar as a potentially useful piece of information to determine the problem.

Thank you!