So as the title says, when you back out of Dungeons during the Marker planning phase of the battle at the start, if you come back, it completely disappears. Basically, I didn't check if the battle was a boss so wasn't sure if I should put spaces for epics down or not, I backed out quickly to check, came back and boom, the markers planning tool disappeared... this is the 2nd time it's happened to me and I don't know why.
Then it just looks like I don't want any placements... which isn't true, so people leave. 😦
(The first photo shows no planner or comment for viewers to see like "follow battle plans" because I backed out during battle planning phase. The second photo is fine, and I didn't back out at all).