Change:
const indents = this.getGuidesByLine( visibleStartLineNumber, <del> visibleEndLineNumber + 1, </del> <ins> Math.min(visibleEndLineNumber + 1, this._context.viewModel.getLineCount()), </ins> activeCursorPosition );

Discussion:
<!-- Do Not Delete This! bugreporttemplate --<!-- Please read our Rules of Conduct: --<!-- Read our guide about submitting issues: --<!-- Search existing issues to avoid creating duplicates. --<!-- Test using the latest Insiders build to see if your issue has already been fixed: --<!-- Instead of creating your report here, use 'Report Issue' from the 'Help' menu in VS Code to pre-fill useful information. --<!-- Launch with to check. --Does this issue occur when all extensions are disabled?: Yes <!-- If you answered No above, use 'Help: Start Extension Bisect' from Command Palette to try to identify the cause. --<!-- Issues caused by an extension need to be reported directly to the extension publisher. The 'Help Report Issue' dialog can assist with this. --error keeps repeating
maybe from one of your PRs?
Deminified using ERR&nbsp;Cannot&nbsp;read&nbsp;properties&nbsp;of&nbsp;undefined&nbsp;(reading&nbsp;'length'):&nbsp;TypeError:&nbsp;Cannot&nbsp;read&nbsp;properties&nbsp;of&nbsp;undefined&nbsp;(reading&nbsp;'length')<br/&nbsp;&nbsp;at&nbsp;<br/&nbsp;&nbsp;at&nbsp;<br/&nbsp;&nbsp;at&nbsp;<br/&nbsp;&nbsp;at&nbsp;&nbsp;()<br/&nbsp;&nbsp;at&nbsp;<br/&nbsp;&nbsp;at&nbsp;<br/&nbsp;&nbsp;at&nbsp;<br/&nbsp;&nbsp;at&nbsp;<br/&nbsp;&nbsp;at&nbsp;<br/&nbsp;&nbsp;at&nbsp;&nbsp;()<br/
This doesn't reproduce for me. It could be something triggered by the specific file you're opening combined with your specific settings. Could you please share with us the problematic file?
not really, its happening with any file i open, even the user !
i re-downloaded the app from and it gives the same error
Could you please share your settings?
its kinda long <details</details
I think I got the same problem. I can't see the cursor blink. Here is another error I've got when I open a file: !
Line numbers and cursors do not seem to appear in a new file created with CTRL+N. It seems that some files are displayed and some are not.

I'm also experiencing the same issue, but not for all files: all files have this issue and some files will trigger the issue as well. So far, other types are opening fine.
Could you please also share your settings?
This is my
To reproduce: configure scroll to the end of a file such that the last line is visible As a workaround, you can configure to unblock yourselves. We've frozen the build and looking into a fix.
works for me, thank you
is there any way this fix could be released early? currently, the vscode insiders build is unusable due to this. vscode stable release does not feel like home to me :D
this did not work for me :(
currently, the vscode insiders build is unusable due to this. Yes, a new insiders build is scheduled to be released as soon as it finishes. You can try disabling indent guides completely or using the stable version for the next couple of hours. We're sorry for the breakage and appreciate that you're helping to improve vscode by using the Insiders build !
New release fixed it, thanks! Version: 1.75.0-insider Commit: Date: 2022-12-12T12:42:54.079Z