QField buffer on select geometry point

On my QGIS project i have a lots of points. I create a personal rule when I select a geometry (point), the selection create a view of a buffer area for a single point. I use this command on my symbology:

personal rule: is_selected ()
label → geometry genereator → buffer($geometry,250)

This comand working very well on QGIS but when I transfer the project on QField and I use the android app this didn’t work anymore. I try a second way using the simple symbol 250 map units and personal rule always the comand is_selected(), this work on QGIS but not on QField. What can I do?

Thanks for this fantastic product and the support.


Imported from GitHub discussion by @Nicobiker on 2022-10-25T07:41:32Z