TM search does not work correctly with SR1

Since I have installed SR1, the TM search does not work correctly. During translating, I have to do TM reindexing several times a day since even 99% match segments, which I have freshly translated just one minute ago, are not visible in the search results. I also can´t find fragments of this segments with the concordance search. The TM upgrade has been performed. I tried to create all my TM's completely new, TMX export files of the old TM's were newly imported, but it did not help. Does anyone know what might be the cause? Thank you for your tips!