Required fix in: convert_csv_to_mt.py file. The converted FXT file from CSV data files consist possibly zero values as per chart below.
In the platform, this can be tested by running terminal.exe (e.g. via wine with X11 forwarding if inside VM), then from menu select File -> Open Offline, and select the file (hover on the item to see the file path). The FXT file needs to be copied to tester/history folder of the platform to be visible (e.g. ~/.wine/drive_c/Program Files/MetaTrader 4/). Once opened, you should see this window (zoom out or resize window to catch the zero value):
