Sound assignment of global racks does not work?

Edit: seems that soundcategory must be assigned again and reload the rack restores the original sound again 
Has someone the same experiences with this soundassignment error  for a serie of kontakt global racks on midi channel 1

Edit: i tested it with two arrangmentracks from Kontakt on midichannel 1. 
Made a arrangment template  and after  close and  reopen the template file again the two Kontakt racks works as intented. 

I drag&drop  the global rack module onto the instrument column: the global rack becomes a arrangment rack ( one time use rack  )    
  

edit: 

Am still struggling with assigning an instrument to an arrangement page.
I'm still not clear on the suggested method of using a global rack to create multiple arrangement pages.
Note: can set up a global rack and an arrangement rack for an arrangement, though

Have consulted the online manual for this (https://docs.cognitone.com/synfire/EN/tasks/AssignSound.html)
I propose to improve this and start declaring the soundsetup for 2 situations
This will make it much clearer if the user knows what type of arrangement they want to set up.
SOUNDSETUP 1
- arrangement single use racks herein
SOUNDSETUP 2
- arrangement multiple use racks herein
 

edit :

I made an arrangement template with arrangement (Kontakt) racks with 17 instrument tracks for now.
Goes very easily and quickly
I am quite happy with that