Inconsistent Middle Vertical Alignment when Using Variables

I've been experiencing this problem since the past few updates. When using a variable as part of the text on a shape, using the middle alignment does not always middle align the variable as expected. See example below. All the text you see are variables. The first two buttons are acting as expected. The 2nd two buttons which are complete duplicates of the first two demonstrate the problem where the alignment is progressing from the first line of the variable to the bottom. This is extremely frustrating as the reason I'm using variables is because I don't know which text will be in which button so only middle vertical alignment enables me to have a seamless look regardless of the length of the text that is populating the variable. Has anybody else been experiencing this issue. If so, have you found a work-around?

Thanks ahead.