NAT Mikrotik strange things with masquerade where to dig?

Question

Computer networks

In NAT action masquerade When specifying out the list of interfaces, access to a part of the hosts on the local network is lost, what could be the problem where to dig?

Answer 1

Faced similar, decided by setting several NAT rules with interface names instead of a list.

Answer 2

Specify interface names correctly.
Or subnets...

Answer 3

Terminal - export compact show, mb what you can tell