Apple notes disappear then reappear on Mac
Recently, when I am typing into Apple notes, the note will disappear and then reappear anytime from a few seconds to several minutes later.
Notes are saved on a secondary Apple account set as an internet account in system preferences. I have several folders of notes here and all are affected. Several devices have access these notes (Macs and IOS devices).
The problem was very occasion in the past, but in the past few days it happens every time I update a note. We have the same problem on a new iMac running the same version of Mac OS. However, this is not an issue when accessing the notes on iPad or iPhone.
MacBook Pro (Mid 2015)
Processor 2.8GHz Intel Core i7
Memory 16GB 1600 MHz DDR3
Mojave (10.14.5)
MacBook Pro 15", macOS 10.14