iOS 15.3 and Home automations 'when I am home'

Last week the morning automation that wakes me up, turns on lights and plays music stopped working. Not happy to wake up late in a dark house. Other automations worked as scheduled. Only the morning automation was set to work ‘When I am home’. Turning that condition off got it working again. I created test automations with that condition on, they also failed.

The only recent changes were the iOS 15.3, iPad and Homepod updates. I assume my iPhone 11 stopped letting the automation know when it is at home. Anybody else notice this?