IC-7700 in RTTY going back to USB

Knut Meland

This occurred in EARTTY contest this weekend:
When using CTRL+ arrow up or CTRL arrow down to go to next spot on the bandmap, the radio changed from RTTY mode to USB mode.
The same thing happened when using CTRL+page down og CTRL+page up to change band.
Had to push the RTTY button on the radio to get back to business.
Using MMTTY in FSK mode. 
Interface: Microham II
Windows 10
How do we get the radio back to a more normal behavior?
73 de Knut LA9RY

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