Why is other group in Page transition report often over 50%?
Transitions report is not pre-archived, it processes raw data in real time. It may be very time consuming, especially when there is a lot of data. For performance reasons results in Transitions report is restricted to 6 most frequent (5 entries + Others) rows per type. This value cannot be changed. When there are a lot of referring pages with a low number directing to particular page Others row can be much higher than 50%.