ActiveX Button shifts when clicked

I have an ActiveX Button on my Excel Spreadsheet. When I click the button the "box" appears to shift right while the code runs. After the code has finished running the box reasserts itself in its original spot on the spreadsheet. Does anyone know why it's doing this? Have you had this problem before? I tried using Format Control to allow it to move on the spreadsheet and/or lock on the spreadsheet, but it is still exhibiting the same behavior.

Thanks.