This enhancement is correlated with the temp change in the corner station machine room where Rishabh kun set several instruments that generate heat!
As you know, this room and the front area of IXYV are connected with each other thtough the spiral staircase hole, and a strong fan is set to flow the air from the top of this spiral staircase to the front room in the first floor.
So, I guess his activity is the source. But anyway, I hope it will be harmless, and it is not related to some troubles that generate heat.