RX J2133.7+5107: fading episode in 2020 Apr. ASAS-SN data: https://asas-sn.osu.edu/light_curves/0a7dad9d-c746-4641-90c0-8729e2a9d8aa There was a short fading episode to <16.9g around 2020 Apr. 28. The episode would be too short to be regarded as a VY Scl star.