It looks like Rob Kardashian is back to his old ways! The KUWTK star is reportedly not showing up to film his upcoming reality show with pregnant fiancée Blac Chyna!

After a three year break from television, the 29-year-old has skipped several shoots for Rob & Chyna — and Chyna, 28, is picking up the slack.

MORE: Blac Chyna Shows Off Her Baby Bump Following Drama With Rob Kardashian

"He’s struggling to readjust to the grueling work schedule," an insider told Us Weekly. " … Working with your pregnant partner and living together has been stressful. Rob just shuts down.”

This news does not bode well for the six-episode docu-series, which is already at risk of being cancelled after testing low with audiences.

MORE: Rob Kardashian Calls Blac Chyna a "Psycho B—h" Just Days Before Split Rumors — Watch!

"People are not as interested in 'Rob & Chyna' as the network had hoped," a source tells Life & Style. "The network hasn’t agreed to a wedding special yet."

We'll be keeping our fingers crossed! For a look at the couple's cutest moments, check out the gallery below!