Hi mftzk
Thanks for the video.
I've watched it and saw what is happening to you, however, I've tried to do the same on my side and worked perfectly. Are you using the latest versions of ATUM and Product Levels?
Please, confirm that you have these versions:
ATUM: 1.5.8.4
Product Levels: 1.3.3.3
Best Regards,
Salva.