iOS 26 + UINavigationBar crash in layoutSubViews - new observation tracking

My #1 crash report since iOS 26 is the following:

1   libobjc.A.dylib        objc_exception_throw
2   Foundation             -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:]
3   UIKitCore              -[UINavigationBar layoutSubviews]
4   UIKitCore              UIView._layoutSubviewsWithObservationTracking()
5   UIKitCore              @objc UIView._layoutSubviewsWithObservationTracking()

Thread 0
9   libobjc.A.dylib        objc_exception_throw
10  Foundation             -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:]
11  UIKitCore              -[UINavigationBar layoutSubviews]
12  UIKitCore              UIView._layoutSubviewsWithObservationTracking()
13  UIKitCore              @objc UIView._layoutSubviewsWithObservationTracking()

I tried many things, without success so far. It seemed related to the new view update with observation tracking: link to documentation

Any lead on how I should investigate this?

Many thanks in advance!!

iOS 26 + UINavigationBar crash in layoutSubViews - new observation tracking
 
 
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