correct. All UK shows a concert “curfew” but this is usually due to sound ordinances by the city. In other words, the loud noise of a concert has to be done by 11pm.
Because she was on stage late for the February 5, 2020, concert in London, the show went over the Palladium's 11pm curfew, causing the venue to pull the curtains down on the concert. The final song, "I Rise", was performed with the lights and Madonna's microphone switched off.
She claimed it was "5 minutes past our 11:00 curfew" and accused the venue of trying to "censor" her and of "pulling down the metal fire curtain that weighs nine tonnes." The venue denied having used the fire curtain, but did not directly comment on the show being cut short.
A simillar issue happened at the rebel heart tour in Glasgow