I am having the same problem with Sooloos, nothing I did including changing my password in Tidal works. Sooloos just does not recognize my Tidal account.

Ultra DAC, Antipodes K50, Spiral Groove SG 1.2, Lamm LP2, T+A T1210R, VTL TL 7.5iii, Lamm M1.2, Wilson Alexia 1