I am unable to record incoming voice in Nougat

[Android Central Question]

I have developed an app for call recording, it was working so far nice and charm but now issues are coming like "incoming voice is not recording" in NOUGAT and the latest version, but some phone able to record a call from earphone or speaker on mode but not in normal mode, what would be the issues?

 

[B. Diddy]

I moved this to the Software Development forum for more specific traffic.