Network issue on Galaxy F34 after November security patch update

[Arpt]

After November 

security patch update, the network on second sim often shows out of coverage to others who call on my second sim number when data usage is set on first sim and automatic switching data between sims is turned on... Many people reported this issue to me.. 

Also, when you dial the number through second sim, the call doesn't get connected in 1st attempt and network goes out. I have to dial the call again.. 

Anyone else facing the same issue?? 

[Arpt]

Still no resolution provided by samsung to the issue.. The buggy update has caused severe problems for me as I'm using one office sim and one personal sim.. The calls on office sim is not coming and showing out of coverage to others who try to call me.. Very very unprofessional behavior by samsung, the update should be pushed immediately to fix such critical issues..

[Shoboj]

Internet Data Problem