@domubpkm @Br1 I can confirm that on volla quintus (OTA-7 and devel channel) isn't working either. Same behavior as @domubpkm , call-recording locks mycrophone and speaker on calls. Nothing is captured on saved file.
There os anything i can do to track the problem?
(Another interesting thing is that looks like the install-script breaks the camera, it make camera app the capability of record videos. Uninstall the script or change between channels doesn't solve the problem, it is just solved by factory reset )