I can send you the exported Flow zip file but there is no way to attach a file here. I have worked with export/import with many smaller flows and they do not have this issue. It appears to happen when there are more than 3 or levels of nested conditions. Here is what you see when you click on actions in the imported flow just below the 4th level condition:
Clearly a bug and I have tried it mutliple times with multiple FLows having more than 3 levels on nested conditions and they all react the same. Have also tried on Chrome, Firefox and Edge -- all have the same results as above. And since in order for the Flow to work after Importing I need to change the URL in the above Update action even it "worked" after import it would be operating on the wrong site and list. (!!! the whole reason for export and import!!).
Oh and by the way the Sharepoint Update action also fails if you use Variables for the Site and the list name -- another reason Export and Import are mostly unusable for complex flows.
If you want to send my an Email address where I can send the exported Flow zip file I will do that and you can see the above error easily by going down 4 nested condition levels
