Okay, I’m going to try and duplicate your project in 4.1.1 and see if I can reproduce issue. If I can, I’ll then try updating project to see if an updated editor would solve problem for you. My suspicion is that it will; there have been some improvements with Nav Mesh system since 4.1. Is there a reason you haven’t updated to 4.3 yet?
If you wouldn’t mind, could you let me know a few things before I start:
- Are your walls Blueprints with a Static Mesh component? or are they BSP brushes or Static Mesh Actors placed in level?
- What are you using to remove walls? Level Blueprint, Blueprints themselves, or something else?
Thanks!