Watchface rejected due to HR monitor not working

Hello, I use the latest version of watchface studio 1.0.3 and build a watchface with text that show [HR_Z] and set the project to do it every 1h, but this wf was rejected 3 times on google play for HR issue that not work, (I try it in debug and sometimes work and sometimes not) so I thinks its a bug of this wfs release.
How to fix it?

This is a know issue if the body sensor is not detected, HR measurement is not working.
This is a problem in a watch device that do not support the off-body sensor. We know that OPPO Watches do not support that. Remove them from the list of devices.

This is to be fixed in an update to WFS this fall.

Samsung Developer Relations