I can't move sometimes when pressing Play?

So, when "playing" in the editor everything works perfectly fine but once I press play on the actual game, I can't move... sometimes and I really don't know why... I press F9 and there are no errors and ROBLOX works perfectly for me on every other game and it happens to my friends too... if you can help with this then please do...

It's likely a roblox bug if not use this script:

Put it in ServerScriptService same with all the scripts a reccomend:

game.Players.PlayerAdded:Connect(function(plr)
	plr.Character.Humanoid.WalkSpeed = 16
	print(plr.Name.." has been updated walkSpeed!")
end

If that fails then use this script

game.Players.PlayerAdded:Connect(function(plr)
	plr.Character.Health = 0
end