It appears Mechanical Mixers, once enchanted, do not restart after a rotational network has been overstressed (after the rotational network fixes the overstress issue by providing more power). They need to be broken and replaced before they will start functioning again.
Enchanted Presses, Grindstones, Fans, and Millstones (both when powered by shaft from below and cog from the side) all appear to restart as expected.
Unenchanted Mixers do not need to be broken, they will restart once the rotational network is no longer overstressed, so this bug ONLY appears to be a result of them being enchanted.
It appears Mechanical Mixers, once enchanted, do not restart after a rotational network has been overstressed (after the rotational network fixes the overstress issue by providing more power). They need to be broken and replaced before they will start functioning again.
Enchanted Presses, Grindstones, Fans, and Millstones (both when powered by shaft from below and cog from the side) all appear to restart as expected.
Unenchanted Mixers do not need to be broken, they will restart once the rotational network is no longer overstressed, so this bug ONLY appears to be a result of them being enchanted.