I edited a wedding and exported them in color, then changed them to black and white, synced them all, and, exported them again. A week later, I realized my exports were only set on medium-high quality. I need to roll back to the first export. Can I do this as a whole batch or do I have to do all 1050 photos one at a time in the history panel? I hope not, I edited 3 weddings like this. Ugh!
In the future, consider the use of virtual copy's, and exporting to modified file names.
hmm, so edited for color first, then did you add additional edits to go B&W? And as such, the history includes all those edits all the way to B&W? If so, consider creating Virtual copy's of the current state (B&W), then edit the non virtual ones as to remove the steps at the top of the history that converted them to B$W. Simply (unfortunately one at a time I suspect) Click on the history state before the conversion to B&W and forget (clear) the steps above. Do not have any form of sync set. Do not have any of the virtual copy's selected. Test first.