I am unable to encode to a mag stripe using the pass-through mag encoding commands on a ZXP Series 8 printer. However, the a ZXP Series 7 printer works fine.

Are the starting sentinel and ending sentinel still valid for ZXP 8 printer?
Example: ${2123450009881}$

Has anyone experienced a similar anomaly? The error that I get back is depicted in the following screenshot...

Any advice/insight that could be shared would be greatly appreciated.

Kind Regards,
-Derek