I believe that LED in transit (and other flaps malfunction for that matter) are covered in the QRH in detail.
If it is only one of the lights (overhead or centre console) and visually confirmed that the LEDs are up, then continue as normal.
If there's only one panel stuck in transit, then may continue to destination at planned cruising altitude with only speed restriction (I believe M0.65).
If it is more than one panel, then speed 210 and return for landing, either to the origin or TO alternate whichever the case may be.
And really can't expect more than this since you have flaps extended, therefore speed 210 and return for landing. Of course one can fly around with flaps extended at 210 kts to one's heart's content, but it is not deemed fuel efficient and good airmanship. Also, can not expect to continue to destination with any malfunction, example being loss of an engine.