Breach instance crash/hanging - Latency goes to infinity but never get kicked out

When doing a Breach in a map, I have had 2 or 3 times now where the entire instance completely locks up and my latency increases from there on out, never kicking me back to the login screen by itself even after 5 minutes (at which point my latency showed a very high number). This also seems to not kick me offline according to people that have me added, even if I click to log out (also, "Log out to character select" will do nothing when this is happening).

You are only taken offline once you log into your account again from the main screen, which notably also takes a slight delay before it lets you in. In every case this has happened for me, the map where you attempted to do the Breach in will also no longer be available (all portals will be gone, atlas will say Map Attempted).

This does not seem to be build specific - I have had friends all playing different builds (Crossbow mercenary variants, Deadeye bow builds, Infernalist summoner, etcetera) that all have had this happen. Thus, I have no idea what actually causes the crash to occur, unfortunately.

I can personally confirm through experience that Fortress and Blooming Fields are both able to cause this bug. Hidden Grotto has been confirmed by a friend as well.

EDIT: I guess the more appropriate way to word this isn't a crash, but the instance gets stuck as a "hanging process" that the instance manager does not detect as an infinite loop or a crash or something like that to force shut off. I've only seen this behavior happen while doing a Breach.

Update: Friend just had it happen on a Creek map. Very likely that this isn't map specific either at this rate.

It happens on every map. I've had this like 15 times or so. It makes me sick...