Is there a max tile size limit for dtTileCache?

[lhhts...@gmail.com]

was playing around the Sample_TempObstacle in the tool.

I found the largest tile size that can generate a nav mesh is 72:

I 

When I change to tile size 80, the nav mesh is broken:

If I use any value > 80, the nav mesh is completely empty:

Is there any hard limit for the max tile size? I did not find any obvious value in the source code.

Thanks

[lhhts...@gmail.com]

And there is not even any error log?