Why the Build me up Plan is different in Companion and Computer

I started to implement the Build Me Up Plan. Each workout works differently in both lengths and contents on Campanion and Computer.
For example, today there was “Orange unicorn” 50min. in Campanion. While on the computer it was 90 minutes. What could be the cause of this problem?
Has anyone else experienced this before?
Is there something I am doing wrong or is there a fix?
Any help with this would be great.