Issue with (wrong) enroute wind import

I unintentionally mixed up the prepaired cruisewindinformation txt file with another one which just contains the flightplan in 2 different formats, 

changed this on into wx and tried to import it via CDU.

As i've seen my mistake  i wanted to delete the broken *.wx and replace it with the proper one, but it was locked by CDU/FSX. 

I know this is something which will not happen often, but i'd appreciate to get an error or reject warning in CDU, if any file content

doesn't meet the standards instead of locking the file which prevents from replacing it in this case.

I don't know if there is any correlation, but this flight ended with appcrash after 7 hours flight pointing to G2D.dll

P1: fsx.exe
P2: 10.0.61472.0
P3: 475e17d3
P4: g2d.dll
P5: 10.0.61472.0
P6: 475e180c
P7: c0000005
P8: 00085d80