both lines in same insualtion

[RANGER1]

I have read through but can't see any mention of heat pump as first posted.
If on heating, surely lines insulated together is a no no

So on cooling mode no big deal liquid & suction together if metering device on condensing unit.
On reverse cycle discharge & liquid line together, so poorer performance, 70 or so deg C discharge & 22 deg C liquid line touching each other, or close proximity.