Mask generator not working?

Hello! I am in a situation where I know the exact pass length (64), the exact number of the most recurring character occurrences (8), and the exact number of the most consecutive characters in a row(3). I used the following maskprocessor command first - 

Quote:mp64.exe -r 8 -q 3 mask_file.hcmask | cudaHashcat64.exe -m 1400 -a 0 -o hashout.txt hash.txt

. My mask file contained this: 

Quote:?l?d, ?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1?1

. The result was a quick termination with all the stats being zeroed out. I thought it was maybe something to do with the hashcat.hcstat file so I tried using another one that I made earlier and it kept outputting 

Quote:WARNING: Hashfile 'custom.hcstat' in line 1 (): Line-length exception

for as many words I used in the wordlist to create the hcstat file. I'm not really sure what I'm doing wrong, so if anyone can give some insight, it would be extremely helpful. Thanks!