EDGE - Opening multiple pages together that should be grouped results in duplicate tab groups

[GunsAndChips]

Telling Edge to open a specific set of pages (their equivalent of this setting in chrome) where several tabs should be auto-grouped can result in duplicate tab groups being created.

It doesn't happen consistently, but I've had it happen maybe 1 in 5 times when launching browser profiles this way.
It's not a major issue, just a slight annoyance cause you have to manually drag the tabs around to regroup them.
See an example of the bug here:

I also noted when trying to recreate the issue for the above screenshot that if I repeatedly try closing and reopening the same browser profile, it seems to be loading quicker on subsequent launches, and working reliably
I'm guessing it's edge caching some things - so if you're trying to recreate the issue - try jumping between a few browser profiles and you should get it