Surge XT plugin resets patch

Hi! Beginner here. I am using Surge XT plugin with Ardour 6.9.0.
Each time I close then reopen my Ardour session, the midi track gets its patch reset to a drum sound (Verber). I am not sure if I have to report this issue here or on the Surge issues. Let me know where can it come from!

I solved the issue by using the VST3 version instead of LV2.