I have a problam about saouct 4.2 Mcc programing so I shared what making print screen on the Mcc program Progam Block and I marked with a circle and ticked So that is not error or warnings but I dont understand it why is there. I wonder why seem it there, what is this?

best regards

It seems you have a program error in the program inside the module.

Go inside the module and you should find one or more functions with the same dark triangle in the down right corner.  If you correcto all of the dark triangles in your commands or finctions, then you will clean the dark one in your module.

Regards