Rough time estimation & PR merging status

[TashaStenner]

After selecting merge stack at the top of the stack all of my three small PR's went into 'merging' which does not disable the merge button on the other PR's. It has also been going on for the last 15 minutes and still has not completed its merge with no feedback of when it should be completed

[florenceboettger]

Has been happening for me too. Notably it also doesn't seme like the "merging" status is actually persistent, since it doesn't show up on other tabs or after reload, which makes me imagine that something might be going wrong here?