Cracked ceiling after plaster skim

Hi All
I had the ceilings skimmed last year to cover artex and since then we have a crack 1 inch away from the architrave about 3 feet long prob caused by waking in the loft, what the best way to fix please.

 

Dig out flexible fill and paint

 

do I need to make it a v shape first or just fill with flexible filler
thanks

 

Just fill with flexible filler.

Get a decent non shrinking one, ever build do an extremely good one

 

don’t dig too deep to break the tape underneath.
I use car body filler. isopon p38.
flexible and doesn’t shrink . and you can rub it back in 10 mins

 

Listen to Benny, he's a pro

 

nah , listen to turbo , it’s the same advice.

 

i meant the isopon, i never new that, will use it in future