Redstone not displaying correctly (out of sync visuals)

The visuals of redstone are out of sync with the actual clock. Not displaying redstone on the output in this case. While the clock still outputs a signal, it is not visible. Looks like shutter effect on wheels. Seems like the client or graphics part of the game is completely out of sync with the server. While audio and outputs are updating at the right speed.
https://youtu.be/ixIrvstEI18