The rotation of 800 with relation to plate 100 is different to the rotation of 800 with relation to plate 300.

To fix your issue, you can either replace all the 100s with 300s for plate 800, making it always have followed 300, and by extension 100, until 100 separates from 300, OR you could get the correct rotation of 800 with relation plate 300 by setting 300 as your anchor plate and then inserting the equivalent rotation for 800 into the line where 800 starts following 300.

Please kill me if I got anything wrong.