Cannot find node position with custom blocks and shadcn

[kegesch]

Describe the bug
There is a rendering error once a a block with a custom schema is in the content and certain Shadcn Components are also rendered:

Uncaught Error: Cannot find node position
    at $t (internal.ts:100:11)
    at ReactNodeViewRenderer.className (ReactBlockSpec.tsx:265:31)
    at Object.react_stack_bottom_frame (react-dom-client.development.js:25904:20)
    at renderWithHooks (react-dom-client.development.js:7662:22)
    at updateFunctionComponent (react-dom-client.development.js:10166:19)
    at beginWork (react-dom-client.development.js:11778:18)
    at runWithFiberInDEV (react-dom-client.development.js:871:30)
    at performUnitOfWork (react-dom-client.development.js:17641:22)
    at workLoopSync (react-dom-client.development.js:17469:41)
    at renderRootSync (react-dom-client.development.js:17450:11)

I initially thought that this might have to be connected with portals, as those component per default use portals and which might confuse tiptap / prosemirror's getPos function to resolve the actual elements position after the component that uses portals has rendered.
But even if I remove the portals it does not work and also only with custom blocks.

To Reproduce
https://stackblitz.com/~/github.com/kegesch/blocknote-shadcn-bug?file=src/App.tsx

• Include certain shadcn components e.g. DropDown(MenuContent) and the BlockNoteView and include a custom block in the initialContent.

Misc

• Node version: v22.15.0
• Package manager: pnpm
• Browser: edge
• I'm a sponsor and would appreciate if you could look into this sooner than later 💖

[mehdigmira]

Same here ! Any workaround would be much appreciated

[mehdigmira]

Ok instead of setting initial content, setting it in a setTimeout(() => editor.replaceBlocks(editor.document, savedContent), 0) seems t be working

[nperez0111]

Hm, this is pretty surprising to me too. For some reason commenting out the shadcn components makes the editor work again. Maybe Prosemirror cannot find the DOM position or something? I didn't see it have an additional render or anything.

@matthewlipski might know more here