Connect iQ watch faces don’t go to low power mode after message arriving

I recognized with my epix 2 (OS 8.37) that - with AOD activated and gesture control deactivated - a watch face installed via the connect iq store does not automatically go to low power mode again after 1. Incoming message displayed or 2. After returning from sleep mode. The display stays instead always in high power mode until an action (touch on the screen or button press) is done. Then everything is behaving as it should until the next message is displayed. Quite annoying since battery draining.

This issue apparently only affects the connect in watch faces but not the built in watch faces.

Anyone else who can confirm this?