i have the same Problem. The bgl file is updated and the lines are removed out of the runways.txt file.
But as sone as i select a route to LOWS, a window opens with the message "runway assignment warning for LOWS-Salzburg.
Please see the DataProvider´s window."
In the DataProvider are These Messages:
NavData runway ident 33 at LOWS could not be assigned to the Simulator runway
NavData runway ident 15 at LOWS could not be assigned to the Simulator runway
available Simulator runways at this Airport are as follows: 16 34
When modifying the Route, EFB show the prefered rwy, but when i try to select a rwy it Shows the wrong rwys 15 33