No data on 2nd SIM card

Hi all,

Does anybody have a problem with data on the second SIM?

You can choose on which SIM you want to use data.
It works on SIM 1 but doesn't on SIM 2.
APN settings are 100% correct.
I have tested the SIM in another phone and data works there.

I've now ordered a nano-SIM to micro-SIM adapter from ebay to test it in the SIM 1 slot.

Quite annoying.