Dual SIM 4G problem

[ron1]

I tried the above solution on PF LineageOS 7.1. Didn’t work. What fixed the problem was:

@Johannes

Only one SIM can use 4G at the same time, and this setting seems to follow the SIM around. To switch, you’ll need to set the SIM you don’t want to use 4G on anymore to 2G only first, and then the other one to 4G.