Great that this was a fix.
@BOOT3988 - do you know if there's anything we could do to improve Sonic Pi's boot process to avoid this in the future? Do you know what might be causing it? Is this perhaps because other apps are using Boost's interprocess stuff - or is it somehow Boost getting confused with itself?
Also, if there any other things you think we could do to improve Sonic Pi's boot stability then I'd love to hear.