I have tried uploading QGIS files together with the CSV and shp files behind all layers to another computer (via usb) for others to continue working on it. Now when we open the same file and update the data source the layer cannot be edited and just have a gray table image on the side. When clicking on the layers it is impossible to add for example symbols.
Does anybody know how to move QGIS files between computers and continue working on the same file without the layers becoming unworkable?