Shove voles stop eating from the critter feeder periodically and start starving. Reloading or unselecting/reselecting regolith will allow the critters to "recognize" the feeder and start eating from it again.
Steps to Reproduce
Build stable with critter feeder storing regolith from an autosweeper. Wait. Shove voles stop eating from feeder and start starving. Note: a reload causes the shove voles to start eating again, so it may not be that helpful. I am including it anyways.
This issue has not been confirmed by a developer yet.