Improve robustness for resource tests
Turns out that the random interleaver with five processes sometimes does not interleave, so only one port is required (which seems like a bit of a bug in the code, although at the same time not).
Turns out that the random interleaver with five processes sometimes does not interleave, so only one port is required (which seems like a bit of a bug in the code, although at the same time not).