Data lost or delayed upon automation writing with OSC control

[amundsen]

Hello,

I am trying to write automation for a VST using an OSC control surface.

Before writing, I can see that the connection is fine because the points are moving vertically on the envelopes.

However, when writing, it seems that data are lost or delayed. I have either a flat line or erratic movements which I think come from older movements I have made a few seconds before.

The connection is wired so no issue there. I have also checked that all the data reach the computer using an external OSC Monitor.

So what's wrong? Is there an OSC buffer somewhere which I could try to tweak? Should I reduce the dataflow from the controller?

Thank you in advance.