If you can't plunder directly after the attack, and it shows that you can still plunder in the player's avatar; instead of clicking to see if you can plunder- it would be great if the icon only lit up when there was something you can plunder without having to go to their city for nothing.
Nothing new there, same with visiting Taverns, shows available, then when you click it, it dissappears, as Tavern is already full, been suggested already years ago that these icons should only show when actually available to initiate a action, but was dismissed or isn't possible on a permanent basis , was fixed once in an update around 2 years ago, but reverted after another update, like so many things that need fixing, it doesn't happen, don't waste your breath, the format for new ideas is overly complicated and ultimately a waste of your time.