Incoming LTC sync issue in reaper record mode

Hi there,
this issue might be similar to that reported by fvaespen 12/05/09.
I had the problems in my time to time reaper tests of elder versions than 3.161 too. And I can't use that nice piece of work without a fix (I assume it's a bug, as I checked everything 5-10 times and I'm not new to that area):

Reaper runs as smpte/ltc slave, 25fps to a tascam reel deck, last track striped. Slaved Synchronisation in playback is always fine (not perfect! but sufficient) when reaper is not recording something in parallel. When I set up a track in reaper for recording (audio or mdi - doesn't matter), slave reaper to the tascam, the world looks different: Reaper starts with the right frame, says chasing, but doesn't follow the ltc sync signal so gets more and more out of sync. By the way: sync parameters seems to have only an impact as long as I don't like to record while slaved. Interesting: reaper unsync's always ahead of the incoming ltc! And - from time to time (1 out of 40), I can't find a rule, it stays perfect in sync.

As I said, it seems to me this "bug" is not only reported by me. I wished, you guys are capable to fix it, I could instantly change to REAPER which, as far as I could evaluate would be the perfect environment for my purposes
Thanks in advanced,
Michael