I emailed them again and got this response:

Thanks for the email inquiry,

I have been able to verify the problem that you are emailing about with
this recent email and have forwarded the information to the appropriate
department for review. My expectations are that a firmware update will
resolve the problem as you indicate. You can sign up for email notification
at www.lowrance.com under "product updates" when an update is available for
your unit. We appreciate your patience in the mean time.

Please advise if you need further assistance.

Thank you for choosing Lowrance Products.

Lowrance Electronics
12000 E. Skelly Dr.
Tulsa, OK 74128
800-324-1356