See the reply from Charles -- do you have the same problem with the /T option?
Nothing changed in FFIND between 12.01 and 12.10.
i will look further for it, but this is also strange
the 25Mb file had the text displayname in the first line
ffind /V/T"display" users.txt
0 lines in 0 files
ffind /V/E"display" users.txt
---- C:\Dumps\users.txt
1 line in 1 file
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in the 11.0 version which was also installed it works fine
also in Grep
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did also a test on a different machine with a backup of the file en same negative result