I hope someone have experience with this problem and have a quick answer.

I have a Microsoft Visual C++ 17 application that I am adding a new select button to an existing dialog resource. I am adding a new radio button select control resource to an existing list. There should only be one button selected at a time. Only problem is the new button control is acting independently from the rest of the existing button controls.

I have reviewed the resource code and everything appears declared properly. The ID resources are all sequentially numbered with no skips. I am frustrated with what to check next. Any suggestions anyone?