Litter tray issues!

[MissPricklePants]

I have a 12 week old kitten and a 3 year old cat. The kitten is using the litter tray to wee in but is pooing next to the tray. I have 2 trays for my older cat in different part of the house and 2 trays for the kitten. My older cat has never used the kittens trays and they are kept separate at night time/when I'm at work. I have tried using different litters, moving the trays, vet visit and feliway.

Both cats seem to get along ok, grooming each other, snuggling up together to sleep and apart from a bit of hissing initially there has been no issues with the cats.

Any suggestions on how I can get the kitten to poo in the litter tray?!

[MissPricklePants]

I have been doing that, should have put it in my OP. She doesn't seem to have a preference for litter and quite happily uses 2 trays to wee in! and poos next to one of them!

[elephantoverthehill]

Perhaps you might pick up the poo and put it in the litter tray so that the kitten recognises the smell/place etc?