Kemper speaker out not working with neutrik patch for rack panel

Hi,
Wondering what is happening...
Speaker out works fine connected directly to my cab but if I use my neutrik and cordial (2x2.5mm) that I soldered nothing happens...
Tested my work with the guitar signal in the front input and it works also verified conductivity and all seems fine...
Any ideas ?
Thanks

link to the neutrik connector :
https://www.thomann.de/fr/neutrik_nlj2_md_v.html

Hey yep it was all the good stuffs ! and I did a good job it works now !
Seems like was a misconduct with something around it.
Redone a better job isolating the solder points on the connector ends and boom it works fine !