When I look into testtrades.log file, the entry and exit prices (of non-JPY Forex assets) have only 4 decimal places. When I export the asset prices into .csv file using export script, I can see they actually have 5 decimal places as expected.

The calculated profits seem correct but is there any trick how to display all five decimal places for entry and exit prices in testtrades.log file?

The current version prints all prices with 4 decimals in the logs. But a more flexible printing format is planned for a future version.