i have the same issue for many years. i couldn't find any sollution but this one; hold outputs and go to system menu. roll tone 1 from w/v to twk and save. now you can use your tone. do this to all tones. but this way, you can't use volume pedal or wah, just use the tone.
i know this is not the sollution, but still better than nothing. if there is a sollution, please post here.