WebBrowser crash in Vision

Ignition
1

I have a simple Vision application that displays a live stream from an IP camera.

At first, I tried using the IP Cam Viewer, but my camera doesn’t support MJPEG. So I ended up using MediaMTX to convert the RTSP stream into HTTP. In Vision, I embedded a Web Browser component to display the live stream.

It almost works perfectly.
When the Vision client launches, everything works fine.

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However, if I try to log in with another user, the Web Browser component crashes and I can’t interact with the application anymore.

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When I click the “Log Out” button, I get an error message.
The script on the button is simply:
sytem.vision.logout

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I don’t understand what’s causing this issue, and I’m not sure where to start investigating.

Does anyone have an idea what might be going wrong?

2

Null pointer exceptions in IA code are always bugs that need to be reported. Open a support ticket.

3

To clarify:
The NPE is unambiguously a bug, where we're not being sufficiently defensive in our code.
It appears to be happening "downstream" of whatever exceptional state is causing the browser crash, though. There's probably more in the logs that would help identify what's actually causing the browser crash.

4

Thank you for your replies. I opened a support ticket yesterday.