Thanks for the context, seems related to: https://github.com//socketio-client-ue4/issues/126 I’m still chasing down the root cause of it.
Try an earlier release e.g.: https://github.com//socketio-client-ue4/releases/tag/0.10.0 which doesn’t have the issue and let me know if it works. I’ve added a 4.22 version, but keep in mind that v0.10 only works on windows/linux