What Offset Means – USB connection has been lost. First make sure the machine is on, connected and in sewing/Drive mode. If it is and you still get "Machine Busy", check the PC's Device Manager for indications of what has happened. If you are connecting to a 64-bit version of Windows (current and recent versions of Windows), and if the machine is showing in the Device Manager and shows a COM port number assigned to the machine, go to the HappyLink program, click File, then Options, and make sure that USB-COM is selected as the connection type, and select the COM port number assigned by the Device Manager. If the machine is not showing in the Device Manager at all, you may need to re-load the correct drivers.
Difference between Custom 1-5 and the hoop maps found on this page: – The PC has been able to send over the design, but not any settings you may have modified for it, such as color changes, rotation/scale/pull compensation settings, etc that can be done in HappyLink. This may be because either (a) HappyLink was not run in Administrator mode, or (b) the design is stored on a remote drive with limited access or an unwritable drive link a CD-ROM. (explanation of the latter: To create sendable settings, HappyLink needs to create a separate file in the directory where the active design is stored, which contains these settings and ends with an .hp1 extension. Unwritable or write-protected drives will prevent this file from being created, triggering the error message.)