Megan Fox and Machine Gun Kelly Had ‘Another Big Fight’ but ‘Still Trying to Work Through It’ (Exclusive Source)

Megan Fox and Machine Gun Kelly are continuing to work through their issues.

A source close to the engaged couple tells PEOPLE that the actress, 37, and actor/musician, 33, “had yet another big fight” and that “it’s always the same thing.”

“They have severe trust issues in the relationship. It’s been rough, but [they’re] still trying to work through it,” the insider adds.

Says another source who knows the pair, “They’re still on and off.”

Reps for Fox and Kelly did not immediately respond to PEOPLE’s requests for comment on Tuesday.