sorry for the delay in my reply folks. I tried everything, made sure the auto replant was off (set it to 0 in config and even deleted the script from the plots and refreshed scripts), and I'm on a private region so no one else has access to harvest beyond the owners and my partner, none of whom come onto my sim). I still watched the crop go from 100% growing to 0% growing right before my eyes. It just resets itself without any time or option to harvest at all. So bizarre! I've given up, but wanted to thank you all for your help. Happy Farming to the rest of you!

There is an option in the config notecard to autoreplant and if that is set to 1 then the crop will just reset if not harvested ( AUTOREPLANT=1 ) That said, it should got from Growing 100% to Ripe 0% and not reset until Ripe 100%

I stood and watched as my crops reached 100% then immediately rolled back to 0% without being harvested. This happens with all my crops and trees. I did find another version of the farm and am currently trying that, so hopefully it will work better for me. I'll try resetting scripts next if that doesn't help. Thank you!

*edit - and no, one one else is harvesting for me, it's my region alone.

Usually at 100% you touch it and click harvest otherwise it dies until you click to clean up. Unless someone is harvesting it. Is your farm group so others can use it? If so thats why, others are harvesting. If not try reset script and see if that helps.