I have encountered an issue when using the PVA authoring canvas/screen on a classic bot.
When the mouse cursor hovers over the re-wire node the topic canvas goes blank and an error is presenting "Something went wrong" "Please try again or refresh your browser." "Session ID: <id>".
I tried multiple devices and users but we are all having the same issue. When I inspect the browser's Console I see an error indicating "DOMException: Failed to execute 'querySelector' on 'Document': '#<number>_default_receptor' is not a valid selector.
*edit: this issue was resolved with MS update