[1.11] Pausing the game causes 2 asserts

Verification Build: 1.11.0.3_bet_rc2

Partner Rank: 4

Summary:
Pausing the game causes an assert.

Impact:

Crash if you have "Break with Asserts" on.

Repro Steps:

1. Open any world
2. Press "Escape" to open the pause menu
3. Observe the issue

Observed Results: 

 

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Assert Failure - ctrl+C to copy this message to the clipboard!
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Assertion failed: UI-warning:On Control Path: /pause_screen/variables_button_mappings_and_controls/safezone_screen_matrix/inner_matrix/safezone_screen_panel/root_screen_panel/pause_screen_main_panels/menu/the_rest_panel/pause_menu/menu_button_control/menu_background/button_panel/Undefined | Expected variable not found in ancestor tree: '$focus_up_control'

Condition is false: false
Function: DebugEndPoint::log in f:\darwinwork\9\s\handheld\src\common\debug\debugendpoint.cpp @ 72

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OK
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Assert Failure - ctrl+C to copy this message to the clipboard!
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Assertion failed: UI-warning:On Control Path: /pause_screen/variables_button_mappings_and_controls/safezone_screen_matrix/inner_matrix/safezone_screen_panel/root_screen_panel/pause_screen_main_panels/menu/the_rest_panel/pause_menu/menu_button_control/menu_background/button_panel/Undefined | Expected variable not found in ancestor tree: '$focus_down_control'

Condition is false: false
Function: DebugEndPoint::log in f:\darwinwork\9\s\handheld\src\common\debug\debugendpoint.cpp @ 72

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OK
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Expected Results: 

No assert. Pause menu.

Screenshots/Videos attached: 

No