Error Printing/Previewing Label

[hxk1633]

I'm encountering an error when trying to either print or preview a label. I'm able to detect the printer and selected it before initiating a print or render label api call. This is the error I'm encountering for printing labels:
Error printing label. Exception: Operations that change non-concurrent collections must have exclusive access. A concurrent update was performed on this collection and corrupted its state. The collection's state is no longer correct.
I get the same error when trying to render a label for previewing. I'm not sure what I'm doing wrong here. The model of my printer is DYMO LabelWriter 4XL if that helps.