Error while running the python version of server and client

Hello,

I'm using the python vosk server version inside the latest docker container (image id: c98d01ef2758; sha256: 90bf6aaffa5dacea742f8891b73d7c5e61f5ae383fb9b019dfa2c50be43217f9). I'm calling the python client from a bash script to loop through a list of audio files which I want to decode. Everything works well, receiving the transcripts for a part of my audio files, but a a certain moment, the server crashes with the following error:

LOG (VoskAPI:CompileLooped():nnet-compile-looped.cc:345) Spent 0.00443506 seconds in looped compilation.
WARNING (VoskAPI:Compose():compose-lattice-pruned.cc:942) Composed lattice has no states: something went wrong.
WARNING (VoskAPI:AlignLattice():word-align-lattice.cc:310) Trying to word-align empty lattice.
ASSERTION_FAILED (VoskAPI:CompactLatticeStateTimes():lattice-functions.cc:114) Assertion failed: (lat.Start() == 0)
Aborted (core dumped)

This is the first time when the vosk server crashes, I used it in the past (a bit older version) with the same audio files and everything was fine. Another new thing now it represents the RNN rescoring which I'm using.
Any ideas please?

Thanks,
Lucian