Actually the reason is very simple and um.. very embarrassing . 😆 They've not yet shot the previous birth scenes , God knows the reason , may be budget or time constraint or sets and costumes for period drama ( as in 500 years back ) set in Rajputana has not been prepared as yet .
But they've to show some thing for flashbacks , don't they since the entire premise of the story and Mohini's connection with Ram lies with their tie in the previous birth . So they can't omit out that part . That's why they're showing JA footage , thinking viewers are blind and dumb and they won'r recognize that these are taken form JA , when the truth is it is so glaringly obvious that even a child can detect it easily. I can even recognize each and every single clip from which episode which track they've been taken from. 😆 It looks very very odd.
CID
Health and Fitness
