Meagu still has momentum in its movements, even after the recent update to remove that. Simply pressing only the s key quickly reproduces the problem.
Install the Black Desert Launcher if the game doesn't start.
The launcher will appear if it's installed.
If it doesn't, try to run your downloaded launcher.
1 Run BlackDesert_Installer_NAEU.exe to install the Black Desert launcher.
2 Start the game once installation is complete.
Meagu still has momentum in its movements, even after the recent update to remove that. Simply pressing only the s key quickly reproduces the problem.