Check out my newest post on @UnofficialSF Discussion on two handy actions that will let you refresh or recalculate formulas on a record collection in Flow!

https://unofficialsf.com/re-calculate-formulas-or-refresh-record-collections-with-these-handy-actions/

@Salesforce Flow Automation, @Lightning Flow Discussions 

I've also started my own Blog! https://medium.com/@DeclarativeNinja

Let me know what you guys think of the actions in the comments section!

Thanks @James Hou for the great action!