Linux Ubuntu: stops to work after first switch

[d9k]

Config:

{
  "viewTypes": [
    "markdown",
    "canvas",
    "pdf"
  ],
  "showModal": false,
  "skipPinned": false,
  "stayInSplit": true,
  "focusLeafOnKeyUp": false,
  "useViewTypes": true
}

Hotkey config:

"cycle-through-panes:focus-on-last-active-pane-reverse": [                                       
  {                                                                                              
    "modifiers": [                                                                               
      "Mod",                                                                                     
      "Shift"                                                                                    
    ],                                                                                           
    "key": "U"                                                                                   
  }                                                                                              
] 

Versions:

Obsidian v1.6.3
Tab switcher 1.4.0
Ubuntu 22.04

When I press Ctrl+Shift-U first time, tab switches. Any further keyboard input in app is ignored (can't write text too).
No error at Ctrl-Shift-I DevTools console