Error with notebook debugging is vs code.

Hi v-hashadapu,

Thank you for your response.
I tried running the VS Code debugger while connected to a personal hotspot, and I now get a different error. The popup still shows:

Initializing Fabric Data Engineering PySpark debug session. This can take a few minutes.

But in the logs I see:

2025-09-01 09:18:17.181 [error] Error: command 'synapse-remote.internal.extensionIsReady' not found
at kKe.n (vscode-file://vscode-app/c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/workbench.desktop.main.js:1251:3892)
at kKe.executeCommand (vscode-file://vscode-app/c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/workbench.desktop.main.js:1251:3824)
2025-09-01 09:18:34.742 [error] TypeError: Cannot read properties of undefined (reading 'split')
at Object.provideFileDecoration (c:\Users\tgk\.vscode\extensions\synapsevscode.synapse-1.15.0\dist\extension\extension.js:210581:41)
at file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:119:4588
at Array.map (<anonymous>)
at xy.$provideDecorations (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:119:4524)
at C4.S (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:119615)
at C4.Q (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:119395)
at C4.M (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:118446)
at C4.L (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:117589)
at Jh.value (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:116386)
at $.C (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2373)
at $.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2591)
at fo.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:9458)
at Jh.value (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:388:8361)
at $.C (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2373)
at $.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2591)
at fo.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:9458)
at MessagePortMain.<anonymous> (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:388:6653)
at MessagePortMain.emit (node:events:518:28)
at Object.MessagePortMain._internalPort.emit (node:electron/js2c/utility_init:2:2949)
2025-09-01 09:19:07.622 [error] ExtensionError: Error in extension synapsevscode.vscode-synapse-remote: FAILED to handle event
at Jh.value (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:196:100366)
at $.C (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2373)
at $.D (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2443)
at $.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2660)
at Jh.value (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:196:62698)
at $.C (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2373)
at $.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2591)
at Cy.acceptDocumentsAndEditorsDelta (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:120:11788)
at Cy.$acceptDocumentsAndEditorsDelta (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:120:10247)
at C4.S (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:119615)
at C4.Q (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:119395)
at C4.M (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:118484)
at C4.L (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:117589)
at Jh.value (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:116386)
at $.C (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2373)
at $.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2591)
at fo.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:9458)
at Jh.value (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:388:8361)
at $.C (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2373)
at $.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:27:2591)
at fo.fire (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:29:9458)
at MessagePortMain.<anonymous> (file:///c:/Users/tgk/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:388:6653)
at MessagePortMain.emit (node:events:518:28)
at Object.MessagePortMain._internalPort.emit (node:electron/js2c/utility_init:2:2949)

I am not able to choose the synapse-spark-kernel kernel, I only have the option to choose Microsoft Runtime Kernel into the Pyspark kernel. 

So even outside my company firewall, debugging still fails with these extension errors.
Do you have any leads on what might be causing this?