Unexpected error with message Cannot read properties of null (reading 'type')

Description

Unexpected renderer process error.

Minimal Reprouducible Markdown Example (or Steps)

Stack Trace

TypeError: Cannot read properties of null (reading 'type')
    at ContentState2.updateToParagraph (file:///Applications/marktext.app/Contents/Resources/app.asar/out/renderer/assets/index-Bjcbqr7S.js:131270:29)
    at ContentState2.checkInlineUpdate (file:///Applications/marktext.app/Contents/Resources/app.asar/out/renderer/assets/index-Bjcbqr7S.js:130860:21)
    at ContentState2.inputHandler (file:///Applications/marktext.app/Contents/Resources/app.asar/out/renderer/assets/index-Bjcbqr7S.js:140712:54)
    at HTMLDivElement.handler (file:///Applications/marktext.app/Contents/Resources/app.asar/out/renderer/assets/index-Bjcbqr7S.js:143682:22)

Version

MarkText: v0.19.1 Operating system: Darwin arm64 25.5.0 (darwin)