TradingView Magical Keyboard Shortcuts

Shortcuts don't wotk

Hello there!
I installed and bought the extension, however neither "Disable default behavior of spacebar (except for text inputs/boxes)" while free version nor "Enable Gamer Shortcuts ("WASD")" and "Enable Left/Right Arrow Keys Shortcuts (Cycle through time frames)" don't work. Moreover an option "Enable vertical scrolling with SHIFT" doesn't simply save as marked and when I open the extension again it's unmarked.
What is the problem and how can I solve it?
Refreshing the page, reopening it or reopening Chrome browser itself don't help too.
Thanks!