Navmesh Needs to be rebuild

I have tried adding plane surface. Also tileset has collision so on block all it still forms a path.

Also when it worked last time it was on pawn or spectator I guess but I don’t understand the reason having green path and when I try to play it says Navmesh needs to be rebuilt. Did you try playing it?

Also I have final exam so I won’t be able to provide response for few hours.

No. Like I said, I’m wasn’t going to install this plugin into my engine and half of the blueprints were broken because of it.
The tileset is just a plane by the looks of it, no surface to generate nav mesh on. What you could do is have your background image and then have an actual flat floor to walk on (eg. cube). Nav Mesh is required if you want to use nodes like AI Move to. I would also use characters as they already come with built in movement component which will save you a lot of headache. Pawns work too but there might be a few extra steps to it.
Alternative would be doing the movement of your AI in code and remove nav mesh altogether as it will not work with what you have in your level right now.

Again, 2D isn’t really my thing, so I could be totally wrong here. I might be able to reach out to someone who’s working on a 2D game tomorrow for some clarification, but I can’t make any promises.

Good luck with your exam!

Thankyou for your insights and help and wishes. I will try.

Nope it didn’t work.

Tell me one thing if I keep the collision settings on spectator will it still generate green mesh. This is what I remember when the code actually worked.

I’m not sure what you mean. I feel like I keep missing an important part of what you’re trying to do. I know it’s not a nav mesh issue.

I suggest, in the future, when you get a working piece of code and want to mess with it, make a duplicate of it (duplicate all the nodes and what not in the graph), and work on the duplicate. That way you always have a fallback working code.

I mean this green path will show on spectator settings of collision of Navmesh.