In this labsetup there isn't, but we have the same symptons when there is a whole VPLS network in between it.
After viewing your last post (the one after this), I must admit we did not do the "cut wire 12" test, maybe the redrawel of the static route on the juniper send a some sort of bfd message causing the er-pro to keep the route up (bug or feature, don't want to go into details now). I'm going to test this further on monday
thank you for your efforts so far