Files missing from library

Hi,

I have a couple of files in ADE for study. Sometimes I read them on my laptop, sometimes on my desktop. In order to enable this, I put my files on OneDrive. However, every time I open ADE, it shows the files but states they are missing.

Because this gets annoying, I moved the files to a local folder on my computer. However, it still states the files are missing every time I open ADE. I then have to delete them from my library, look for the folder and add them again.

Is there a way so ADE remembers what is in the library and where I am reading?

Thanks.