Why does dragging a card double its size in Firefox?

Question

I've been having this weird issue for about 3 months.  When I drag a card, the card doubles in size and I can't see where I'm dragging it.  It happens in private browsing in Firefox so it's not related to an addon.  It doesn't happen in Chrome.  It does happen across all my Atlassian accounts, so not related to a new feature being slowly rolled out.

Brant Schroeder · Answer

@Jayen Ashar I have tried recreating the issue and I am not able to.  It has to be something with your browser on the machine and I would still recommend clearing the cache just to rule it out.  You might have to uninstall and reinstall the browser, especially since it is working on other computers.

Jayen Ashar · Answer

There are no browser plugins enabled for private browsing and no browser plugins installed in the 2nd Firefox profile.

The cache should be clear in private browsing and is definitely clear for the 2nd Firefox profile.

window.devicePixelRatio is 2 in case that is related.

Brant Schroeder · Answer

@Jayen Ashar it sounds like a CSS issue.  I would still recommend clearing cache and seeing if that fixes the issue.  Also are you sure there are no browser plugins installed?