Re ... it’s odd that some people are impacted and others not. Sounds bizarrely like another proper crisis doesn't it.

I did wonder if the type of subscription you have was perhaps relevant? I pay my £19.99 for the hi-fi/ masters, so I can listen to MQA. From my iPad app, the only Tidal options now displayed concern masters (but there is no content shown). Is there anybody on this site experiencing problems who have the non masters subscription?

Rm1: 861v8, 2xDSP7200SE, DSP5200HCSEU, 2xDSP5200, 2xDSP33, MC200, 218, 271, NAD M17, Panasonic DP-UB9000 Blu-ray,
Sony VPL-VW790ES projector
Rm2: 561, 3x DSP5000 (18 bit)
Rm3: 218+Farad PS, 2x SE7200SE
Rm4: 218, 2x DSP5200.2
Spares: G61RSL, 3x DSP5000, 2 x DSP33