UE5.2, pixel streaming emitUIInteraction doesn't work

Hi!
After upgrading my project to 5.2, I tried to run pixel streaming (both in the editor and in Samples folder) I can’t send emitUIInteraction command to UE.
Have this error:

emituiinteraction is not defined

It still works with signalling server from 5.1.

The bug is still here.

Hi there!

Can I confirm you’re using the correct version of the Pixel Streaming Infrastructure?
If you’re using 5.2 UE, you may encounter issues if you’re using the 5.1 Infra.

You can get 5.2 infrastructure here:

I use in-editor pixel streaming support (it’s very nice for testing).
But for EmitUIInteraction command I’m forced to use old signalling server. From 5.0 or 5.1, not sure.