@4carlos: I am not aware of any synching neither do I know about any indexing. What bothered my is that it were two processes called “sdcard” that were active and both caused quite some CPU load. However, I am thinking of replacing the SDcard by a new one because even if it is still OK it might fail due to too many cycles in case the processes “sdcard” caused a lot of reading and/or writing.
Thank you for caring!