Remote WHMCS host filed disappears after saving.

When I Enter the Remote WHMCS host field with my domain, save (save says sucessful), navigate away from the page and then return to the settings, the field is blank.

I think I have the module working and have ran around 10 payments through PayPal and everything seems Ok. A new site gets provisioned, notifications go out, etc.

Is this just a bug that I do not need to worry about or is there something wrong with my WordPress site?

Attached is screen shot of empty field so you know where I'm talking about.

I'm having a similar problem with the WHMCS Integration module and have a post open on that discussion board.