Using Sonospollytts node-red results in gateway error 502

After adding a sonospollytts node it works fine. But when restarting node-red (e.g. because of an Hassio update) the node-red add-on fails to start. This behavior is independent of which port is set in the Sonospollytts node. After deletion of the node red flow using sonospollytts node in /config/node-red/flows.json the node-red add-on can be started without problems again. Seems like the Webserver started by sonospollytts is somehow conflicting with node-red’s Webserver?

Any help appreciated.

BR
Marc

Hello
what version of Sonospollytts are you using?
You can change the Sonospollytts webserver node port in the config window. Default is 1980.
Please report any issue on https://github.com/Supergiovane/node-red-contrib-sonospollytts
I’ll respond more quickly!