Hello.
I tried insert into RBM33G two modems Simcom 7600E-H.
In Resources -> USB i see two modems, but in Ports only one.
RouterOS: 6.40.7, 6.41.4, 6.42rc56. (In 6.42rc56 only one LTE interface).
Jumper near USB port removed.
In situation SIM7600E-H + R11e-LTE - all good: 2xLTE or LTE+ppp-out1.