Cloner, duplication issues after 10,000 rows

Cloner, duplication issues after 10,000 rows

My issue is, my 'source' dataset (6,600 rows) needs to clone each single row 54 times,

example - Row '2' is cloned 54 times so the 'output' has 54 identical rows of '2' (to then later be transposed..etc..);

I have noticed once the completed 'Output' dataset reaches 10,000 rows it starts again from the top (row 2 of source again), so row 2 has 54 correct clones and then it repeats again at 10,002, 20,002, 30,002 etc......

The issue: Original row 2 repeated again at row 10,002

Simplified set-up:

Hope someone can help?

regards,

Richard