Cubase & Spectralayers in ARA


Cubase Pro 12
Spectralayers 9 license
Mac mini M2 32Go RAM

I spend an hour yesterday cleaning some audio events in Cubase with Spectralayers, so in ARA. I saved and closed the projects. Today i open it and these audio events are not playing any audio anymore, Editor of spectralayers below is empty. When i go to Audio / Extension / Remove extension from Select events, then i have the audio event playing but all my processing is gone and i have to do it again.
Any idea what’s going on?