My understanding of station-psuedobridge is that it behaves similarly to NAT. The station associates with it's ap and then uses session tracking to translate MAC addressing on it's client side to use it's MAC over the air link. Clone mode does the same thing, but takes the MAC address of the first session established over the link to use for all other traffic.
The problem this creates at the far end is that in ARP one MAC can have many IP addresses associated with it. Generally any kind of MAC layer discovery or management will not pass over this translation. It is for this reason that WDS was created.
If you have a large network or gateway on the client side of the station-psuedobridge you are basically trying to get the station to manage all of the MAC translations. Depending on hardware, this may or may not work. But in general it is just a bad idea.
Use WDS instead, or flip around the station to be your AP. At least then it will be running the MAC translation as designed. Station psuedobridge should only be used for a couple of client devices on the far end, not as a path to a gateway.