Seeker.StartPath returns wrong path

It appears at least part of my problem is that I have teeny tiny bumps in my road, like here:

So my agents cannot traverse here because of that tiny sliver. At this point, I have already set the cell size to 0.05, and the WalkableClimb to 2m and the MaxSlope to 72. And still the agent can’t get over this.

Only when I increas the MaxSlope all the way to 90 does the gap close.

I went through the forum and found a post that was similar:

But all the tipps there didn’t help. CellHeight is no long changeable but calculated. I tried reducing my graphs height, which was set too high anyway, in the hope that that would decrease the CellHeight and therefore maybe fix my issue, but no luck.