How to triplicate a word or pattern - OpenCL error when 'M 'in rules

[Snoopy]

erm why you dont use plain hahscat 6.2.5 which will use your gpu by default?
words.txt

Code:

12345 pass test

endings.txt

Code:

end1 end2 end3

Code:

hashcat -a1 --stdout words.txt endings.txt -j p2

resulting in

Code:

123451234512345end1 123451234512345end2 123451234512345end3 passpasspassend1 passpasspassend2 passpasspassend3 testtesttestend1 testtesttestend2 testtesttestend3