Signal Tap crashing immediately after launch

Hello,

Signal Tap is crashing immediately in Quartus Pro after it is launched. I get a "Sorry!" modal, and the report is listed below.

Also, I tried submitting a service request, but I'm taken to a page that continually redirects / reloads (using FireFox).

Regarding Signal Tap crashing, everything works fine with the same project on a different Windows 10 PC. I tried cleaning the project and deleting all the temporary / build directories, but this didn't help.

I'm guessing my recent installation of 23.4 is corrupt.

Thank you.

Problem Details
Error:
Internal Error: Sub-system: CHI, File: /quartus/sld/chi/chi_control_nodes_scan.cpp, Line: 227

Must scan the device first

Stack Trace:

  Quartus          0x2471a: CHI_CONTROL_NODES_SCAN::is_device_available + 0x2a (sld_chi)

  Quartus         0x110059: SEDQ_INSTANCE_WIDGET::qt_static_metacall + 0x539 (sld_sedq)

  Quartus         0x1fb3c0: QObject::event + 0x170 (Qt5Core)

  Quartus          0x36cf9: QWidget::event + 0xde9 (Qt5Widgets)

  Quartus          0xd56bf: QFrame::event + 0x2f (Qt5Widgets)

  Quartus          0x8960d: SEDQ_INSTANCE_WIDGET::event + 0x4d (sld_sedq)

  Quartus          0x1483f: QApplicationPrivate::notify_helper + 0x10f (Qt5Widgets)

  Quartus          0x138c2: QApplication::notify + 0x18b2 (Qt5Widgets)

  Quartus         0x1d4439: QCoreApplication::notifyInternal2 + 0xb9 (Qt5Core)

  Quartus         0x1d6194: QCoreApplicationPrivate::sendPostedEvents + 0x214 (Qt5Core)

  Quartus          0x5a76e: qt_plugin_query_metadata + 0x1f0e (qwindows)

  Quartus         0x21d573: QEventDispatcherWin32::processEvents + 0x73 (Qt5Core)

  Quartus          0x5a748: qt_plugin_query_metadata + 0x1ee8 (qwindows)

  Quartus         0x1d086b: QEventLoop::exec + 0x1bb (Qt5Core)

  Quartus         0x1d3403: QCoreApplication::exec + 0x153 (Qt5Core)

  Quartus           0x2c2e: qgq_main + 0x7e (quartus)

  Quartus          0x280a8: msg_main_thread + 0x18 (ccl_msg)

  Quartus          0x29282: msg_thread_wrapper + 0x82 (ccl_msg)

  Quartus          0x2b063: mem_thread_wrapper + 0x73 (ccl_mem)

  Quartus          0x25e6f: msg_exe_main + 0x17f (ccl_msg)

  Quartus           0x4466: WinMain + 0x156 (quartus)

  Quartus           0x3971: __scrt_common_main_seh + 0x105 (quartus)

  Quartus          0x17343: BaseThreadInitThunk + 0x13 (KERNEL32)

  Quartus          0x526b0: RtlUserThreadStart + 0x20 (ntdll)

End-trace

Executable: quartus
Comment:
None

System Information
Platform: windows64
OS name: Windows 10
OS version: 10.0.19045

Quartus Prime Information
Address bits: 64
Version: 23.4.0
Build: 79
Edition: Pro Edition