Mine's working fine. I just did both convert entities and intersection curve on same sketch and both worked fine. I can even move the plane up/down and they update as they should. 2010 SP2.1 32-bit.
Maybe a few more specifics on how you were using Intersection Curve or screen shots might help diagnose.
Intersection Curve.jpg 98.8 KB
Mine is working fine as well. Simple dome and plane though. Are you doing something really complex?
This question has come up before with sw2010. Several commands in sw2010 use the .Net framework. You have mentioned two of them. Some customers have had trouble with not having the proper version installed.
I'll post the information again so that it's easier for others to find.
I've checked with Tech Support and here is what I received:
I hope this helps.
Thank you Ditmars. That appears to have fixed the problem.