Mayank

Please provide a minimal repro using the latest version (3.13.3). This bug report is not actionable in its current state.

Actually, I'm pretty sure this was fixed in 3.13.3, so I'll close this issue until there is more info.

This is fixed and released in [3.15.0](https://github.com/iTwin/iTwinUI/releases/tag/%40itwin%2Fitwinui-react%403.15.0). @smmr-dn You might want to inform the iModel Console team if this is still relevant for them.

@ValdasSorys @VJSlint We are looking into it, but we don't have an ETA. We understand this issue is important for you.

I've created #2633 which is based on one of the approaches that we previously discussed (i.e. finding the widest element). Let me know if anyone has feedback on this implementation....

The fix for virtualized horizontal scrolling is finally available in [3.19.4](https://github.com/iTwin/iTwinUI/releases/tag/%40itwin%2Fitwinui-react%403.19.4) 🚀

I've also noticed that `composeVisitors` drops some specific functions, such as `StyleSheet` and `StyleSheetExit`. ```js composeVisitors([ { StyleSheet(s) { console.log(s); // This never gets called }, StyleSheetExit(s) { console.log(s); //...

> > startTransition > > Not sure, where you would recommend to use `startTransition` in the sandbox I have provided. There is no `setState` call or anything like that. It...

Here's a sandbox that shows how you can display a spinner while the slow component is rendering: https://stackblitz.com/edit/github-busehfar-yqn2ackt?file=src%2FApp.tsx I originally built this using [`React.useTransition`](https://react.dev/reference/react/useTransition), but found it simpler when using...

We need to address the rendering performance, but in the short term I'd be curious to see if using `startTransition` internally in our TablePaginator would help with this.