Assertion failed: Property->PropertyFlags & CPF_Net

Development Programming & Scripting Blueprint
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1

After upgrading to 4.16 from 4.15.3 my project crashes with this error whenever I run 2 player multiplayer with PIE.

I have a blueprint hierarchy (BaseCharacter → PlayerCharacter → [LaserCharacter, PlasmaCharacter]) that seems to be the problem. If I open either BaseCharacter or PlayerCharacter and “Refresh All Nodes” it runs fine and doesn’t crash, but this fix doesn’t last between restarts.

The crash only happens in PIE, Packaged builds of the game do not have this problem.

I’ve attached the crash report if that helps.

2

Do you got any news on this issue? Seems like i got exactly the same situation here.

3

I’m in the same boat. I’ve tried rebuilding the engine from source. That doesn’t seem to fix it

4

I’ve realized in my case, this was related to cyclical dependencies in my classes. You might want to check your reference viewer to see if you notice any cyclical dependencies to help diagnose the problem.

5

same problem here

6

Push… we got the same problem

7

Do you use any variables in that class? you change anything in property flags?

Also i found it was already raported bu unable to reproduce:

So we need to find way to make it atleast reproducable, in other words find the right conditions that cause this crash