Overlapping texts

What I did: I upgreaded to Mac Mohave today

What happened: the previous screen that showed a general menu category does not disappear whenever I type a new memo, or when I scroll through previous ones. It is as if the text is graffitied over all texts.

What I expected: I expect each new memo to have nothing in the text area.

Things that might be helpful to know (Agenda version, OS and model, etc):

We’re sorry to hear that, can you send us a series of screenshots of what you describe?

Also, are you sure you are using version 2.5.1?