Compressor Gain Reduction Meter Inop

Has anyone else seen this with the Compressor plugin? I get the numeric display at the top of the meter but nothing on the bar graph meter itself. Is there a setting for it? Maybe I accidentally selected the wrong color somewhere for the ON segment?
The input and ouput meters seem to work fine. I’ve seen the GR meter work in earlier project revisions but it seems to have stopped working after I added several of them.
Any ideas?