Pulse OX with Battery Saver

Hello Garmin-Friends,

I use my Garmin Instinct in the Battery Saver Mode. Only the Watch Face is activated as low power because the display is so nicely reduced.

With this settings the watch will crashs while a manual measurement of Pulse OX.

With deactivated Battery Saver Mode everything is fine.

Can someone reproduce this bug?

Best regards

Fabian