Rob Kardashian and Blac Chyna's reality show 'Rob & Chyna' is "up in the air"

Speaking about a follow-up to PEOPLE, a source from the programme's production team said: "['Rob & Chyna' is] up in the air."

Whilst another source has confirmed a new series is "not happening", as it was struggle filming the pair in their first season, but they now they don't spend any time together.

A separate insider told US Weekly: "It was hard for them to film season one and season two is not happening.

"They can't even get through a day together - logistically they can't do it. They co-parent Dream, but they don't spend time together with Dream."

The Arthur George sock designer and his 28-year-old partner got engaged in April last year and have since had a turbulent relationship, which has seen them break-up and make-up a number of times over the past few months.

However, their most recent fall out this year has yet to be resolved.

A source said: "They are definitely not living together. They're still broken up."

Despite their on/off relationship, the birth of their tiny tot has been "really good" for the dark-haired star and Blac - who has four-year-old son King Cairo with her former partner Tyga - and has left Rob feeling "really positive".

A source said previously: "Rob had been staying at Kris' house with the baby while Chyna was out of town and Kris was helping him with the baby. He's in a really positive mood again.

"Everything was moving so fast with the relationship, the baby, the engagement and the show that this break has been really good for both of them. Now that they've had space, we'll see if they end up getting back together, but for now, they are still happily separated. They are both much happier and in a better place right now."