Logo text Taylor Frankie Paul ‘s Wednesday night appearance on The Tonight Show Starring Jimmy Fallon was canceled amid an investigation into an alleged domestic incident involving the star, The Hollywood Reporter can confirm. Paul was scheduled to come on the late night show to promote her upcoming season of The Bachelorette , but sources say NBC canceled the appearance and has not rescheduled. It is unlikely her appearance will be rescheduled, per sources. Paul is pulling double duty as both the next star of the ABC reality series, which was set to premiere on Sunday, and continuing star of Hulu’s The Secret Lives of Mormon Wives . Both shows are under the Disney umbrella. The cancellation by NBC comes shortly after Mormon Wives  paused filming on the forthcoming fifth season due to a new  alleged domestic incident  involving Paul and her ex, Dakota Mortensen. On Monday, TMZ  and  People  both reported that filming was halted.…