Can't import my keyboard shortcuts after upgrade to 3.6.11?

Operating system

Windows

Joplin version

3.6.11

Desktop version info

Joplin 3.6.11 (prod, win32)

Device: win32, 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz
Client ID: 0975f7fe71ab4522b6b3a78e3410beee
Sync Version: 3
Profile Version: 49
Keychain Supported: Yes
Alternative instance ID: -
Sync target: (None)
Editor: Markdown

Revision: 7f6fda7

Admonition markdown extension: 1.1.0
Backup: 1.5.1
Combine notes: 1.2.3
Convert Text To New Note: 1.5.1
Copy Code Blocks: 2.1.0
Create and go to tags and @notebooks: 1.3.7
Freehand Drawing: 4.3.0
Joplin Batch: 0.2.2
Life Calendar: 1.5.1
Math Mode: 1.0.0
Note Tabs: 1.4.0
Outline: 1.5.15
Quick Links: 1.3.2
Record: 1.5.0
Slash Commands: Datetime & More: 1.5.1
Templates: 3.0.0
Text Colorize: 1.2.5
turnToChart: 1.9.3

What issue do you have?

I upgraded my Joplin from 3.5.13 to 3.6.11 and I can't import my keyboard shortcuts that I've used for years. When I try to do that, I get an error

Error: Accelerator "Ctrl+Y" is used for "editor.deleteLine" and "globalRedo" commands. This
may lead to unexpected behaviour.

I tried to change it but then I save the settings, I changed another setting and came back and it changed back to the undesired accelarator, please help, why is there always a problem with those keyboard shortcuts? Why is there no save button in the keyboard shortcuts section?

Importing the json file with keyboard shortcuts doesn't work.

Screenshots