If you load the URL sky.esa.int/?action=goto&target=208.36495%20-67.41694&hips=DSS2%20color&fov=0.6184503996975068&cooframe=J2000 there appears to be a hole in the DSS image in ESASky. It dissapears if you zoom out. This does not appear in Aladin Lite so appears to be a problem with ESASky - possibly missing Healpix tile ?
This is the position of Gaia18aod (aka Nova Circini 2018 (PNV J13532700-6725110)
Customer support service by UserEcho