No result generated

[jasc76]

Hi

i tried to .bbl files, but PT just wont generate a result. It works on .bfl files though
Dont know if its related...
PT shows this:
WARNING 2018-08-27 12:38:28,088 PID-Analyzer_0.52.py:933: Ignoring BBL session 'C:\Users\js\OneDrive\Quadcopter\PID Analyser\tmp\btfl_000_temp0.bbl', 61B < 500000B.
WARNING 2018-08-27 12:38:28,088 PID-Analyzer_0.52.py:933: Ignoring BBL session 'C:\Users\js\OneDrive\Quadcopter\PID Analyser\tmp\btfl_000_temp1.bbl', 497664B < 500000B.
INFO 2018-08-27 12:38:28,088 PID-Analyzer_0.52.py:940: Analysis complete, showing plot. (Close plot to exit.)
INFO 2018-08-27 12:38:28,089 PID-Analyzer_0.52.py:999: Interactive mode: Enter log file, or type close when done.

Attached the logfile
btfl_000.zip
(just Motor and logging Test (no props, armed, RC Input) , no flight)

Thanks
Jan
PS: Thank you so much for the effort put into this tool !