There are a few open issues that look like PSES is crashing when it comes across a strange character. - In Workspace.cs on `#`: https://github.com/PowerShell/vscode-powershell/issues/1453 - On `.`: https://github.com/PowerShell/vscode-powershell/issues/918#issuecomment-408463127