OK, I apologize for the over posting… but I believe I just wanted to post this for anyone else having trouble.
I realized that the share buttons created by Jetpack were being laid over the link to trigger the Lightbox from the thumbnail, so I just hid that sharing div when it is in the portfolio “mask” div created on the thumbnails page:
div.mask div.sharedaddy {display:none;}
The same effect could probably be achieved by adjusting the z-index or otherwise repositioning the sharedaddy div when it appears over a portfolio thumbnail.
WAIT… I take that back… it’s not working again. So frustrating. I have no idea why, but when Jetpack social sharing is turned on, Lightbox don’t work on the portfolio pages. ANY suggestions would be greatly appreciated.
CORRECTION: It seems that it’s working now. Very strange. The social icons were popping up under lightbox thumbnails, and then the lightbox wasn’t working. After reinstalling Jetpack and reactivating the socials, it seems to be working now…
I’m having similar issues with Lightbox in the theme and Jetpack. It seems that the Jetpack social sharing plugin causes the issue, because the Lightbox works fine when this portion of Jetpack is disabled.
If anyone has any thoughts or workarounds, please let me know. I’d like to use the theme’s built in Lightbox functionality, but Jetpack’s social sharing functions are important for me.