After upgrade 3-6-16 notes don't load. Menus broken

If this is a bug report, please create it on GitHub instead. Follow this link:

on

Operating system

Windows

Joplin version

3-6-16

Desktop version info

Joplin 3.6.16 (prod, win32)
Help menu shows (empty) This infor is from working copy on another computer

Device: win32, Snapdragon(R) X 12-core X1E80100 @ 3.40 GHz
Client ID: 5eed1497893b43e2a64dfacb10979ce1
Sync Version: 3
Profile Version: 53
Keychain Supported: Yes
Alternative instance ID: -
Sync target: Joplin Cloud
Editor: Rich Text

Revision: e1cf924

Backup: 1.5.1
Freehand Drawing: 4.3.0

What issue do you have?

After upgrade, not notes display. Only a few menu options work. Help shows empty. Reload view causes error, Quit doesn't work. Windows X at top right doesn't work. I close app using task manager. I have uninstalled and reinstalled several times. Same result. Two machines don't work. One works fine and seems to have overcome memory consumption problem.Although it wasn't an easy transition, Joplin worked OK for two months.