I am unable to give two same inputs to a bus creator block from MATLAB function block

On giving the same input to two of the three input ports of the bus creator block on Simulink, I'm getting an error for duplicate inputs given to the bus creator block. When two same inputs are being given from a constant block to the bus creator block, it's working, but when two same inputs are being given from the output of the MATLAB Function Block to the bus creator block, it isn't working.

I followed https://youtu.be/xITaSozcq00 tutorial on YouTube and it worked for him but it isn't working for me. Could you please help me figure out the issue?