Hey I think I found a bug in the UI, nothing urgent or game breaking no worries :
in the flow tab (you need at least 2 flows there already)
If you select several flows (like in screen capture)
and you then delete one manually by clicking the ... on the right hand side of the flow you still have 3 flows selected (second capture)
If you then click the bin in the top left you get an error message (third capture) and you still see the flows you wanted to delete
it then auto fixes itself by auto refreshing I think
I could replicate it several time