Why is my stack inserter doing this (attempting and failing at picking up steel)? Power is fully satisfied. The steel belt is running at full speed, the gif just isn't showing it. If I replace the stack inserter it will work properly for a while, then it will go back to this dance. Thanks!

It ...

Why is my stack inserter doing this (attempting and failing at picking up steel)? Power is fully satisfied. The steel belt is running at full speed, the gif just isn't showing it. If I replace the stack inserter it will work properly for a while, then it will go back to this dance. Thanks!