After solution of the malfunction of connect, I have to remark one more point in favour of WiiM vs Bluos, when Tidal connect it's in use...
Apart the every 1sec playing time update by WiiM vs every 5 sec update made by Bluos, that loses sync in lyrics display, another connect annoying point, was the stop playing at the end of a playlist, album or a single choosen song, whilst the app without connect starts playing a similar song, according to what set in preferences. I remember this was for WiiM and Bluos both. Now I checked again and found that WiiM, when connect is in use, starts another similar song at the end of last one. Bluos still stops and need a manual intervention.
I don't know when the behavior with WiiM was corrected, since it's some time from my last specific test but well done WiiM, I believed was an issue from Tidal and they always ignored my tickets about.
Now the remaining Tidal quirk, is that the "recently played" list, it's not updated when "connect" is on play...