Do you use the 'Multiple Float Paths' functionality within the scheduler of P6 Web (EPPM)?
I'm using R8.2 (B0869) 12.13.2011.1223 and am finding that it locks up (wont re-schedule using a new target milestone), after a single use. It can only be unlocked by either re-scheduling with 'no float paths', or by remotely re-scheduling the same project in P6 Professional (PPM) and screen re-freshing the Web version.
If anyone is aware of this being a known (and possibly patched) issue, I would be very appreciative.
Steve