GUI of Wavetable does not refresh Envelopes Matrix

[ngeiswei]

The Envelopes Matrix frame of Calf Wavetable remains empty/invisible on my system (Manjaro, Calf Plugin Pack 0.90.3-5 on from community repository).

I can add an entry in the Envelopes Matrix frame and that one will be visible for the time being, but if I close the GUI and reopen it, then the entry is gone. Likewise, when I select a preset the Envelopes Matrix frame remains empty (while I can clearly hear some modulation is taking place).

I know it's experimental but it's yet a really nice plugin, would be a worth being completed and maintained. Is there a way to donate to help the cause?