Im having a strange problem adding a parameter to a dynamic block. Im tring to add the rotation parameter so that i can rotate a RECTANG with a one letter TEXT within it. I drag the rotation parameter onto the area and it prompts me to select a base point but when i click the very center of the RECTANG, which is also where the TEXT is justified to, it tells me "invalid 2D point" and will not let me slect it.

I swear i just made this work the other day. Am i doing something wrong?