GPIO interrupt and SPI on G2231

Hi all!

I'm using Launchpad with a G2231 and having problems using 3-wire SPI (output only) in combination with interrupts on an input pin.

SPI works fine all the time while interrupts P1.3 only works under these two circumstances:

1) SPI is running, i.e. sending data on MOSI or
2) SPI is not configured at all

It seems USI interrupt interfere with GPIO interrupts. Has anybody experienced similar problems?

Thanks!