I cannot change the status of any (CONVERTED) estimates once I have converted to an invoice. This is a BIG problem as we send progress invoices and I need to bill more off this estimate. HELP PLEASE!

I am not able to change the status on any of my converted invoices.  This is a BIG problem as we progress invoice and I need to invoice from this estimate again.

Anyone else having this issue?  

I've been told via a Qbooks chat that it is a glitch.

PLEASE fix this ASAP!!!