Fatal error on compilation

Full compilation after delerting /db and /incremental_db

Problem Details
Error:
Internal Error: Sub-system: SDR, File: /quartus/sld/sdr/sdr_data_session.cpp, Line: 2116

Unexpected FIO_FILE_SYSTEM::status() return

Stack Trace:

    0x108b9: SDR_DATA_SESSION::parse + 0x1af9 (sld_sdr)

     0x9d91: SDR_DATA_SESSION::SDR_DATA_SESSION + 0x241 (sld_sdr)

     0x82e1: SDR_DATA_MANAGER::open_session + 0x61 (sld_sdr)

    0x1f896: ICE_CONTROL_GUI::setup_assignment + 0x356 (sld_ice)

    0x2a57a: QUI_FRAME_WND::flow_starting_setup + 0xca (SYS_QUI)

    0x12911: QUI_APP::start_flow + 0x51 (SYS_QUI)

    0x4e692: QUI_PROCESSING_MENU::start_compile_action + 0x62 (SYS_QUI)

   0x11d1f0: QMetaObject::activate + 0x520 (QtCore4)

     0xa2cf: QAction::activate + 0xdf (QtGui4)

   0x3467a5: QAbstractButton::click + 0x135 (QtGui4)

   0x347699: QAbstractButton::mouseReleaseEvent + 0x59 (QtGui4)

   0x3f31ae: QToolButton::mouseReleaseEvent + 0xe (QtGui4)

    0x61dc4: QWidget::event + 0xd4 (QtGui4)

    0x22f95: QApplicationPrivate::notify_helper + 0xf5 (QtGui4)

    0x21b8e: QApplication::notify + 0x71e (QtGui4)

   0x10e67b: QCoreApplication::notifyInternal + 0x7b (QtCore4)

    0x25dee: QApplicationPrivate::sendMouseEvent + 0x1de (QtGui4)

    0x869b0: QScrollBar::trUtf8 + 0x1440 (QtGui4)

    0x8a361: QApplication::winMouseButtonUp + 0x2761 (QtGui4)

    0x15c1c: CallWindowProcW + 0x3bc (USER32)

    0x15611: DispatchMessageW + 0x1f1 (USER32)

   0x133982: QEventDispatcherWin32::processEvents + 0x3e2 (QtCore4)

    0x82074: QApplicationPrivate::openPopup + 0x204 (QtGui4)

   0x10b5db: QEventLoop::exec + 0x22b (QtCore4)

   0x10dbbf: QCoreApplication::exec + 0xdf (QtCore4)

     0x198b: qgq_main + 0x8b (quartus)

    0x13258: msg_main_thread + 0x18 (CCL_MSG)

    0x14a5e: msg_thread_wrapper + 0x6e (CCL_MSG)

    0x16af0: mem_thread_wrapper + 0x70 (ccl_mem)

    0x12af1: msg_exe_main + 0xa1 (CCL_MSG)

     0x2777: WinMain + 0x127 (quartus)

     0x1f40: __tmainCRTStartup + 0x148 (quartus)

    0x17c23: BaseThreadInitThunk + 0x13 (KERNEL32)

    0x6d720: RtlUserThreadStart + 0x20 (ntdll)

End-trace

Executable: quartus
Comment:
None

System Information
Platform: windows64
OS name: Windows 10
OS version: 10.0

Quartus Prime Information
Address bits: 64
Version: 20.1.1
Build: 720
Edition: Lite Edition