Godot 3.5: Navigation errors

[AurelienCaille]

Godot version

Godot_v3.5-beta1_win64

System information

Windows 10 Famille version 21H1

Issue description

addon used: zylann.hterrain

Adding navigation obstacle during runtime provoke some errors:

E 0:00:00.925 set_navigation_node: Condition "nav" is true.

scene/3d/navigation_obstacle.cpp:132 @ set_navigation_node() Player.gd:5 @ _ready() TestGame.gd:7 @ _ready()

E 0:00:01.242 sync: Attempted to merge a navigation mesh triangle edge with another already-merged edge. This happens when the Navigation's cell_size is different from the one used to generate the navigation mesh. This will cause navigation problem.

modules/navigation/nav_map.cpp:639 @ sync()

Steps to reproduce

• open reproduction project with godot 3.5
• launch "game"

Minimal reproduction project

TestBugNav.zip

[akien-mga]

The reproduction project didn't finishing uploading, could you re-upload it?

[Scony]

Merge errors are fixed with #56879 applied (after navmesh re-baking)
Remaining errors are fixed with #56600

[Scony]

@akien-mga @Calinou this one is fixed now, can be closed