Remember Cursor Position plugin can't read database: SyntaxError: Unexpected end of JSON input about obsidian-remember-cursor-position HOT 3 OPEN

I tried this before and it doesn't work. It happens after I made some delay starts for other community plugins:
https://forum.obsidian.md/t/improve-obsidian-startup-time-on-older-devices-with-the-faststart-script/32912/2

from obsidian-remember-cursor-position.

It looks like the database file was not written correctly. Try to delete database [VAULT]\.obsidian\plugins\remember-cursor-position\data.json

from obsidian-remember-cursor-position.

I have narrowed down the problem. After canceling all the delay starts:

1. on the Android mobile end, Remember Cursor Position plugin doesn't remember positions when I close OB. (cursor-positions.json not updated).
2. when the Remotely-Save plugin (https://github.com/remotely-save/remotely-save) is syncing, Remember Cursor Position plugin doesn't work even if OB is opening.

from obsidian-remember-cursor-position.