I am using 4.4 update preview.
My game uses a joystick interface, but I don’t want the joystick to show up on the menu screen.
So I set the default touch interface to none and on the game scene I use the node ‘Activate touch interface’ on the player controller. The problem is that every time I use that node, the editor crashes.
Is there another way to have the joystick touch interface in one map and not have it in other maps ?
Ok, here’s what I discovered:
If you set the default touch interface to ‘none’ (in the project settings) and then try to change it in blueprint using the ‘Activate Touch Interface’ node, the editor will crash.
But, if you set the default touch interface to some interface with no controls (an empty touch interface), and then try to change it from blueprint, the editor does not crash.
So that’s how I fixed my problem. 
Again, I am using 4.4 update preview.
Hey Titirez5,
I’m glad you got the problem solved on your end. I just wanted to officially mark this question as Resolved, as the crash has been fixed and no longer occurs.
No no no no, this is workaround titiez5 has discovered, one for which I am grateful as it has helped me previously. The crash has not been fixed and does still occur. So please do not mark it as resolved as it isn’t. Mark it as something else like bug logged with a reference or bug noted but probably won’t be fixed.
Would be great if it could be marked as a temporary workaround
What version are you still seeing the crash in? I’m not able to reproduce it in 4.6.
hi , proven bug in 4.4 4.5 and 4.6.
in the project settings clear the touch interface setting it to None, in the project activate the touch interface =Editor Crash
i made this to test press C for crash
cheers
Ah, you’re right. Thank you for double-checking. I’ll report this internally and get on it ASAP.
hi there.i am getting something like this in my project.when i set up my own touch interface with out any control and set it up in project settings the game runs normaly , but when i add controls to my touch interface it will crash.i dont know what can be the reason.
Hi KamiUE, the bug has been reported and we’ll fix it ASAP.
Until we fix it, do not set your Touch Interface to ‘None’ and the bug can be avoided.
This bug has been fixed internally. We will deploy the fix when we’re able.
Just an update, in case anyone stumbles upon this post in the future: in UE 4.18.3, you can send None (null) to the Activate Touch Interface node without any crashes.
