When we wanted to make a backup from MC of our ET200SP on our PG with Tia Portal 16, we could see all project components but it was impossible to make a backup because of the different version (It needed Tia V15). we tried to open the project on Tia Portal 13 which Exists on our PG but MC Showed us just the online data folder. after that, we open the MC on our TIA V16 again but we could just see the online data folder, and all the other parts were impossible to see and the memory card not working anymore on the ET200SP. 

I have checked the MC files and the only new folder was system volume information made by windows on MC. I can see the old data that I was seeing with my PG on the MC during the machine run on the MC. 

Please help me in this case if you had any other similar issue.