weird bug with pathing - engineers

[dragonalumni]

Suddenly my engineers (2) are standing at the building material supply box that is nearly full and not picking up anything to go build. It looks at times as if they pick up 2 pieces and immediately put them back and never go anywhere. I have to manually grab the materials during a pause, and run them to the building to build.. not fun. Next time I played I'll try importing to see if it fixes it. I recall something like this happening to me on early versions. Was there some fix for this that I have forgotten?

As a side note, I've noticed v99 still has pathing errors into things like pubs or shops.. I thought there was some method to rebuild to pathing routes but it has been months since I last played very much and I've forgot how to deal with it..

Any input appreciated.

[dragonalumni]

Well if anyone comes by here via google or something ages past...
restarting the game worked for me but later I found out shift+F12 "navmesh tools" was the tool I was looking for.

have fun.

[Alexfighter]

It has happened to me but thought it was some kind of collision between tasks, like having engineer and another one, and one of them was not possible but immediately becomes possible (snd priority), then impossible again (other people doing the same jobs), but didn't properly investigate. I'll try what you say next time I observe it. Thanks.