Hello colorchange,

I know you're putting a lot of time and effort to fix it. Still, we'd like to conduct a further examination to see what's going on within your company file. This way, we'll be able to provide details and resolution of your concern. I've tried here on my end and seems it's working fine.  Currently, there's no open investigation concerning the PO. Please contact our Support Team to raise this issue immediately.

You can utilize the Help menu and make sure to give a brief description of your concern. 

Please keep us informed here on how the call goes. Bye for now, and stay safe, colorchange.