I am using the beta version of Maxthon, and am currently on Version 7.1.8.7801 (32-bit) 0403 19:30
I added 4 notes on one computer, and one another computer that is synced, 3 of the notes are empty, and the title of 1 is incorrect.
On my phone 1 of the notes is empty and incorrectly titled. As mentioned, I made sure everything is synced.
The three attached images, are of the original computer, and the other two show the missing/incorrect notes on other devices.