Sneaking and Sprinting, when set to Control or Shift, doesn't stop when button is released, but does stop when inventory or chat is opened. This only happens on servers.

The bug doesn't happen when sneaking or sprinting using a button other than Control or Shift, doesn't happen in single player worlds, is not version specific, and is not server specific.

I tried reinstalling all versions of Minecraft, and I tried deleting .minecraft completely and reinstalling. Both did not fix the problem.