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Level Streaming Brakes NavMesh on Mobile.

Anyone here Experience NavMesh Not updating or even Showing Up on mobile After Level Streaming?

I m Using Android as Platform .. and any time I Introduce BP level Streaming Nav mesh Is not Generated on Runtime same happens on map Travel, I'm testing this In Build / Cooked Game Developer Build. All is setup Correctly, NavMesh is Dynamic, Fixed tile size + I use Invokers, NavBounds and ReCast are in a Persistent level and Sub level just loads World Geometry.

Everything is Working in Editor with no problems I can also use "show navigation" and it will show Mesh In Editor, If I install my .apk in mobile then do map travel and load Sub level, "show navigation" is not showing anything, Is anyone run into this problem..? I'm on 4.21 engine version.

I tested without level Streaming and then Nav mesh is Working and Showing up. Only if I use streaming it seems to break.

Product Version: UE 4.21
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asked Nov 26 '18 at 07:21 AM in Bug Reports

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avatar image Positivity Nov 26 '18 at 02:35 PM

Here is Some Video From test in Editor, Clearly can See that. sometimes Mesh is Generated and sometimes It is not ... and it looks like on Mobile phone this is not happening at all .. https://streamable.com/xovsg

avatar image Jeff A ♦♦ STAFF Nov 26 '18 at 07:24 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



avatar image Positivity Nov 27 '18 at 06:57 AM

I submitted the Bug in new bug submission.

avatar image LastKingsSaint Jan 14 '19 at 08:18 PM

I am getting this same exact thing on PC as well, so its not just limited to mobile. My streaming level randomly wont load the navigation mesh and sometimes it will.

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