Since the new weapon switching upgrade, the holster weapon action causes the player to completely stop the animation if executed when the character is moving. The character will then just play a "stand still" animation, but the player can still move.
The players have nicknamed this "Segwaying", since the character just floats throughout the terrain then.
Before the new weapon switching, the character was stopped by the "switchWeapon" action to holster the weapon. Since the "weapon switching on the move" upgrade with 1.58, this "switchWeapon" causes the mentioned animation glitch.
We do not have a screenshot of this, but you can see it on Twitch every day.