@theluthier In my case I was appending a curve object from a 2.79 file into 2.8. I just downloaded the lastest version, tried again and it worked . But converting still doesn’t seem to work properly. I opened a new file to test out and I only could convert a Bezier Curve, the other curve objects still stay the same and nothing happens.
Edit: Just tried again and now I was able to convert other curve objects too. Very strange, can’t find a similarity in behaviour for now.. 🤔