As many users had this issues with May security patch, the bug is still here with June security patch !
It's terrible how Nokia/HMD is managing bugs on Nokia 7 Plus...
A little reminder: This bug happens when you plug headphone on the Nokia(just some headphones, not all). The sound goes to the headphone for 5 seconds then goes to the speaker.
It's very very frustating !!!
Please correct this issue!