Strange routing problem

I have a strange problem with Studio One.

Let's say i put on a virtual instrument. I put an EQ on the chael, the eq shows waveform just fine.

Then i insert another eq plugin, or vu meter plugin on the master (main) chael,i get a reading from the vu meters, but not from the plugins, not the eq or the vu meter plugin.

Any help would be appreciated, caot figure it out! :(