AppPush failed to find provider bundle identifier

Hello there,

for some time now I am trying to get an AppPush provider to work. The sample project worked fine and I copied and adjusted the code based on our needs, however after I already thought it worked, today the provider is no longer starting.

I am using a network-reset iPhone, saving an app push configuration that seems to be saved successfully and finally I am joining the desired WiFi. Once done, the following log messages appear:

NESMAppPushSession[...]: Failed to find the provider bundle identifier
NESMAppPushSession[...]: failed to initilaize the plugin

I double-checked the bundle identifier passed into the configuration, infop and the embedding of the app extension in the build phases.

Any idea where this message is coming from?