Here’s my findings with Rolling Cache and how… weird it is.
In summary, every time I’d delete and rebuild the Rolling Cache, it would “stack” on the Reserved Space on my Xbox.
Did a full reinstall and it hasn’t done it again since.
Strangely enough, some recent Updates have actually saved me space on the Reserved Space. Recently, it went down from 158.9gb to around 136gb.
I still use Rolling Cache. Haven’t really grasped what it really does, as most of the major issues (CTD, low frame rates) are all caused by Online and Data.