Screen shot would help
I was able to reverse the text direction by copying the flipped path and pasting into Illustrator, then copy in Illustrator and paste back into ID. (You need to copy as AICB in Illy)
Select the object.
Go to the Ontrol Panel menu and choose Clear Transformations
This works with the text still on the path
For me that un-flips the path. The point was to leave the path flipped, but unflip the text when you add it.
I didn't notice that!
What's even more frustrating is if you draw another object, group the two, choose clear transformations, the transformations are cleared, but the type is still backward.