Some related discussion to this root issue may have happened in bug 1877588. Linking it to this one in case it ever comes back and the discussion on this bug helped me understand what was happening in my case too.
Bug 1697248 Comment 11 Edit History
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Some related discussion to this root issue may have happened in bug 1877588. Linking it to this one in case the crash ever comes back. The discussion on this bug helped me understand what was happening in my case too.