Your OPs (Operation Points) cannot disappear in CLM. They are only used for 3 things, so make sure everything is clear:
— First, open up your Automation Panel and make sure you don’t have a gear/building/animal with Automation ON.
— Your Farm Kitchen and Craft Shack also use OPs if they have Automation ON, so check them as well.
— Lastly, OPs are used if you plant and harvest more than 1 plot at a time (options 4 or 9). 1 OP is deducted for each plot that’s planted or harvested.