Mismatch: X:6289 doesn't match requested X:6278

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 ]
filesizedescription
Form_31980.log 956 Log file, useful mostly for debugging
Tune-31980-get.log 163241 Log file, useful mostly for debugging
Tune-31980-training_abc_XX.abc 0 ABC music file with the extracted tune(s)
Tune-31980-training_abc_XX.txt 0 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.