ok, I solved the issue by running ubisoft connect as administrator. weird...

@ubistorm When I first approached this location there were four smaller marks over each of four pillars.
At the moment I can see one quest marker above the boat that disappears when I get close. Quest progress bar is almost full and I can do nothing - the quest note says "Consult the carvings surrounding the offerings boat."

@Enkidu98 Yes I did.

@ubi-borealis still doesn't work for me. It is the same situation as described by @xdigit

"The hotfix did not resolve this issue for me on the PC. When I started the game, "The War Effort" quest was still available. When I selected it the foreign supplies objective was gone and replaced with "Consult the carvings surrounding the offerings boat." When I get within 10m of the offerings boat the quest marker disappears and there is nothing to interact with. Very disappointing!"

Game crashes, pops up a network services error and I lost oll my opal (800+).

ok, I solved the issue by running ubisoft connect as administrator. weird...

Game crashes, pops up a network services error and I lost oll my opal (800+).

@ubistorm I'd like to inform, that a while ago i logged into my game and the quest was completed automatically. I was able to finish the festival questline, although I didn't notice any downloads while launching the game/ubisoft connect. Looks like hotfix just worked for me today.

@ubistorm When I first approached this location there were four smaller marks over each of four pillars.
At the moment I can see one quest marker above the boat that disappears when I get close. Quest progress bar is almost full and I can do nothing - the quest note says "Consult the carvings surrounding the offerings boat."

@Enkidu98 Yes I did.

@ubi-borealis still doesn't work for me. It is the same situation as described by @xdigit

"The hotfix did not resolve this issue for me on the PC. When I started the game, "The War Effort" quest was still available. When I selected it the foreign supplies objective was gone and replaced with "Consult the carvings surrounding the offerings boat." When I get within 10m of the offerings boat the quest marker disappears and there is nothing to interact with. Very disappointing!"

I just did it and I confirm that you need move the 1x1 shelf to it's rail (the one that leads straight to the room whe the guy should spawn). after that I was able to talk to him and finish the event. I also noticed that the shelf can be moved a little bit when it tands on the jars - this means you can move it over this wooden sill withot killing too many people.

And if the guy doesn't spawn just do a manual save and reload your game.

I have the same issue