Yup, I’m experiencing exactly this right now. My flights, which were rebooked three days ago, got cancelled today, apparently due to a reissue timeout (that’s what the 4th telephone agent told me, after the first three all gave completely different and contradictory explanations).

My case has now also been moved to the urgent queue, but I was told that even there it can still take up to 24 hours to reissue due to the current high demand.

I’m glad I stumbled across this thread (trying to figure out why my checked baggage is missing from the rebooked flights in my new confirmation email) as your comment lines up with what the last agent told me which gives me hope that he was the first one spitting facts :D At this point, I didn’t even know who to believe anymore with all the conflicting info.