Bedrock Realm, unable to shear sheep

Windows 10/Bedrock realm. Unable to shear sheep in Survival or Creative. Using a fresh pair, or used pair of shears in either survival or creative - when clicking on a sheep to shear it, nothing happens. This is the case on all colours of sheep. This suddenly became an issue a couple of weeks ago. We have one sheep farm, the owner says the shears do still work but the farm is acting 'odd'. To be specific: "all of them eat at the exact same time. Like on a redstone clock. Then they get sheared and a few more minutes pass. And it goes on like clock work". The shears still work on pumpkins.