Vosk Bug in Speech to Text script

Question

I am working on a python script that uses Vosk to transcripe OS and Mic audio. I want it to work with multiple threads. Operational order:

1. start both audio streams
2. go into a while loop that reads from the streams and safes the data seperately
3. start a seperate thread that gets the audio-data as arguments and works with them to make it compatible with vosk.recognizer.AcceptWaveform() and .Result()

I got most of the code but am running into a really annoying bug with vosk that might just ruin my work of the last 3-4 days and where i need help.

I get this Error code:

WARNING (VoskAPI:BestPathEnd():lattice-incremental-online-decoder.cc:99) No final token found.
ASSERTION_FAILED (VoskAPI:TraceBackBestPath():lattice-incremental-online- decoder.cc:110) Assertion failed: (!iter.Done() && oarc != NULL)
WARNING (VoskAPI:BestPathEnd():lattice-incremental-online-decoder.cc:99) No final token found.
ASSERTION_FAILED (VoskAPI:TraceBackBestPath():lattice-incremental-online decoder.cc:110) Assertion failed: (!iter.Done() && oarc != NULL)

I get this a few times till the sript crashes. I found this link that migth descripe my problem a bit better

Thx for your help