FM8 The Z envelope does not sweep the Z filter

fortyfive

Despite the manual saying the Z envelope is for the Z filter, increasing the env amount raises the filter a fixed amount but does not make the filter track the envelope. I've read and searched everything. Shouldn't this just work?

fortyfive

Figured something out. The envelope only does the first slope. A fast attack just means it jumps high and stays that way. I can start high and create a slope down to do a decaying envelope. But it only does one segment of the envelope. What an I doing wrong?