Line Traces suddenly ignores dynamic content
Seldomly linetraces stops working for no reason. making a trace on the visibility channel switches from detecting all visible content to only detect static meshes. I have tried printing and checking all collision and they are still enabled and still on the same channel. When the bug happens, the traces you get when you use ToggleDebugCamera is also ruined. I have uploaded a video which first shows the normal state and then the bugged state.
In the video : The units and the ring are different types of dynamic objects which does not react to line traces after the bug... i have tested on many other objects and only the static ones react.
Anyone has any idea what could have caused this?
We have recently first switched from 4.12->4.14 and then a few weeks later to 4.15. I have first noticed it in 4.15 but I'm not ruling out a 100% it could have come from the other engine update.
Bonus info: A few times the bug has happened the distance to the camera has mattered, so the linetrace would detect all static meshes in the way of the trace, but only dynamic meshes further then some X distance away.
asked Mar 07 '17 at 01:14 PM in Using UE4
I haven't experienced anything like this in my usage or testing. I wouldn't be able to create a bug report for this unless I was able to get a repro in-house. If you are able to reproduce this in a small test project, let me know. Please include the project itself and exact repro steps.
It sounds to me that there is an issue somewhere in the engine code after upgrading engine version. If you prefer, we can move this over to Using UE4 or C++ and see if someone can dig into it deeper.
answered Mar 09 '17 at 09:04 PM
TJ V ♦♦ STAFF
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