Serious Modeling Bug? Align to Trimmed Surface - Mac 2010

[j-carlton]

I am a longtime Studio user (24 years), and was evaluating OSX Autostudio 2010 on a colleague's Mac Book Pro. We ran into what seemed to be a VERY irritating bug:

If a curve (5th degree, single span for example) is aligned to a trimmed surface boundary, and that surface is subsequently untrimmed, the orientation of the aligned CVs of the curve flip their position to the boundary/curve-on-surface by 180º. If a surface built with the aligned curve has history, it follows the flip of the curve CVs. Undo/Revert does not bring the aligned curve back to where it was, the only way we found to correct it was to re-align manually or delete and start with a new curve. This happened over and over - the only way to prevent was to delete history of the aligned curve before un-trimming.

Is anyone else having this issue - and/or is there a fix in the works?

Thanks for supporting OSX, by the way. Such a treat to be back to the good ole days of Unix!

[JohnDixon8251]

Are you saying that you do not have this problem on a PC? I have had this problem ever since this tool was revamped. There are so many things that go nuts when things get untrimmed that I no longer think of them as bugs, just things I need to work around or rebuild. Whenever I remember, I delete history on the curves after I align them and am happy with them. Then if I need to change it later, I align it again. Obviously not the best scenario.

[digiformer]

...same here...i totally concur with JohnDixon...revolves, rail surfaces, extrudes...the same "funny" behaviour...sometimes