I encountered this a couple of times when building a Flow. Maybe some of you experienced this also.
When you have an Outlook Send Email action you can type everything nice and clear in the body the first time, but if you save the flow and then want to edit it again you have to delete the whole block because you can't set your pointer to the text you want to edit. It stays at the end of the text and freezes. This is very time consuming.
I hope this is just on my behalf so that I can just look for a solution otherwise please try and fix this issue.