Filing Import Simulation

Hello there,

I wanted to use the tool and therefore started testing the appartment-FDS if anything still works fine. I have experienced that this tool only works with the UE 5.0, an older version of fdsreader (I used the version 1.8.4 instead of the current release (1.9.9)) and an SMV-file run by FDS 6.7.9 instead of 6.8.0.
My first Appartment.smv test-file has a simulation time of 5s and everything works quite well! :) Now if I want to import an Appartment.smv, which simulated 30 s I get an error-message

If I want to import one self created Simulation - the geometry is not spawning. Here I get no error message - it just happens nothing. What can I can do to solve these two problems?