After synchronization, a large number of literature disappeared
A category was deleted from device A, and the recycle bin was also cleared during synchronization. It was found that all files with the same title in other categories were also deleted. So I immediately stopped synchronizing and synchronized with another device B that did not delete files. As a result, all files were originally restored on the other device B. However, when I synchronized to device A later, I initially recovered many files, but in the end, there were still many fewer files. Error report: 1489979306, has been submitted. Help me, please.Help!!!