I'm running 6.35.rc30 on RB3011 I have been getting these errors for sometime now, they go away if I back-grade to 6.34.3.
6.34 rc36 still missing Switch menu, Master Port on Interface General Tab & CPU Clock on System/Resources in WinBox. As well as not supporting Hardware Encryption yet!Oh and switch menu still missing on RB3011 WinboxNot in 6.34rc34 yet either FYI