@Marshman - thankyou.

So there is a possibility that your Sooloos core had auto-restarted before 4/15/2020 early evening, possibly leading to the TIDAL issue.

Please understand I am trying to eliminate my guess as to the cause. I could do this by restarting my MD600 core to see if TIDAL is disabled but I am (understandably I hope) reluctant to do that yet.

Do you run core on the C15 or the MD600?

In the spirit of Spinaltap, I would like to confirm that I am not involved in the corrupt theft of a global sport.