Confirmed, the addon crashes Blender after drawing annotation lines and pressing the "Add Surfaces" button.
Bsurface 1.8.3 crash Blender 4.3.2
My Windows Defender warned me that there was a virus, are you sure it's a false positive?
Super useful
a must have
One of the must have for modelers in Blender. If you don't know what this Add-on for! just search it on YouTube.
Works fine for me on Blender 4.3