Describe the bug
Recent files doesn't display recent files
Add or modify files, then open "Recent files" in the drawer. The files that just modified doesn't display

To Reproduce
Steps to reproduce the behavior:

1. add or modify any files, e.g., "123.txt"
2. Open "Recent files"
3. See error

Expected behavior
The files that just modified should display

Screenshots

Smartphone (please complete the following information):

• Device: [e.g. Google Pixel 2]
• OS: [Android 8]
• Rooted: [No]
• Version: [3.8.4]