I created a simple flow using only Mouse and Keyboard actions, it runs fine without any errors, but I can save it only if it's never been saved before. Any subsequent save, independent of whether or not I added or removed an action, results in an error, "Error during flow save" along with a Correlation Id. There is no explanation of the error beyond this.

I have devised a workaround but I remain irritated that I cannot simply save a previously saved flow. The workaround involves copying the actions from the edited flow, opening a new flow, then pasting the copied actions to the new flow and saving.