Happens consistently every single time I throw the knife (using mouse 2). Afterwards, as the knife is “respawning”, I cannot run (using shift) or switch weapons. It keeps being in this state indefinitely even after the knife has respawned. Only clicking mouse 2 again to charge up a new throw fixes the issue, and I can run/switch weapons as normal.
My friend I play with in duos does not have this issue; he claims he can start running instantly after throwing the knife.