NextCloud App Windows - conflict sincronization close app

I have installed on several PCs nextcloud app for windows 10, each has its user, but when 2 users open the same file example (file.pdf or drawing. dwg) and one makes modifications to the other user closes the nextcloud client app, then try to open again nextcloud app closes again in windows without letting me see which file has conflict, I have to close or review one by one my files to know which one has conflict and that takes a long time, once I identify the file with conflict I close it and then I can start the nextcloud app.