Just downloaded the latest CAT file for the 7300. USB_D filter no longer functions.I have changed the filter from 2 to 3 and from 2 to 1 and changing freq always brings it back to FL2, no longer defaults to FL3
If you reset to the default file - the Filter is not set.
Edit the CAT file (go to the IC-7300 section) and you will find instruction to set the right filter you want.