At this point I think it’s a marketing and or profiting situation. I tried several methods yesterday to try to get this to work and nothing. It’s a bit dishonest and disgusting that they would outright disabled the previous expansion content to force people to buy Dragonflight to do dungeon content. Especially when you are forcing folks to do stuff from 2 expansions ago. This topic is over a month old now and no word or fix by Blizzard, which leads me to believe they either don’t care or just want to profit from making folks buy Dragonflight.
Here is the other topic: