Iphone presence doesn't trigger anymore (since 2 days)

#1

1) Give a description of the problem
Presence sensor (iphone) doesn’t work anymore

2) What is the expected behavior?
This piston was triggering fine a couple of days ago

3) What is happening/not happening?
Since 2 days ago, my phone isn’t detected as present and the piston doesn’t trigger

4) Post a Green Snapshot of the pistonimage
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