Have you played around with the warp stabilizer settings? Tried no motion, as opposed to smooth motion? Also, with my brief experience with PPro CS6 the shorter the clip you apply the warp stabilizer, the better the result.
Talk to Mercalli if it crashes or download again, it may have been fragmented. No problems using Mercalli V2 Pro latest download in CS5.5.2. I too was going to upgrade to use Warp but what has happened to you does not sound too good.
i hope you work it out.
There is a new version of Mercalli for CS6. This works fine for me, and other than on short clips which are fairly stable anyway, gives better results than Warp. Also if you apply Warp to many clips your project file becomes huge and results in very slow loading and saving of the project.
The new Mercalli starts in a different way to the old - instead of opening with the dialogue box you get a screen which says that you need to re-scan your clip (just as though you had trimmed the clip after scanning with Mercalli).
I have also had some very odd results with Warp - an unexplaind zoom in in the middle of a clip; a horizon which starts 30 degrees counter-clockwise to horizontal and rotates 60 degrees clockwise as the clip plays; some very pronounced jello where there is moving water in a clip.
Also clips which have the warp stabiliser filter applied are very slow to cut when you want rid of them.
Quote :"Mercalli gives better results than warp"
That was very ineresting, Mercalli Pro V2.0.93 is doing the work for me in CS5.5.2 with no issues.