I personally experienced problem with the initial load - the sound was gritty, with the tonal balance out of wack - it made me dizzy.
Then, after going to RC --> Windom --> remove SD car --> power off/on, I got it right, and resisted any desire to change anything. Having the correct Windom download is too precious to risk losing it.
Which is why when I read Paul’s new thread about synchronicity (Synchronicity), I just chose to ignore it - there is no way I am going to risk messing up my “good” firmware until the loading process is made more robust.