With Serum 2 demo, all notes stop sounding when one note off message is received

Cantabile
1

Hello, I’m using :

  • Windows 11 version 24H2
  • Cantabile Solo version 3
  • Serum demo version 2.0.24

I play C3 and hold the note, then I play E3 and hold the note, the 2 notes chord is still playing.
if I release E3, C3 also stops playing (as soon as a note off is received, all other notes stop sounding)

I tested with Cantabile onscreen keyboard and keystep 37 midi keyboard.
if I replace serum 2 with u-he repro-5, that plugin works as expected.

is Serum 2 supported ?