If you click on an already existing condition, when you want to do changes, some of the options get reset. In the screenshot, you can see that:

• the comparison operator gets reset (from "greater than" to "equal")
• the question (instead of the 'Age' question, we get 'Gender' question).

Ofc, nothing remains saved unless u click on the update condition button!

Not sure if this is a bug, but now that I am working with conditions, I find it a bit annoying because I do not want to think of all the conditions fields when I want to edit only one field.