Why is syntax highlighting missing in CLion? - ide

Question

In CLion, syntax highlighting spontaneously disappears, hints seem to remain, but the highlighting itself disappears. The backlight returns after 10 minutes or after restarting CLion. How can this be fixed?
CLion before
CLion after
CLion logs:
Target file: fd0/fd1/fd2/fd3/fd4/fd5/fd6.cpp
Compilation command: C:\Qt\Tools\mingw1120_64\bin\g++.exe -nostdinc -nostdlib -nostdlibinc -ccc-no-implicit-pch-or-pth -D__JETBRAINS_IDE__=20220200L -D__CLION_IDE__=20220200L -DMINGW_HAS_SECURE_API=1 -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_OPENGL_LIB -DQT_QMLMODELS_LIB -DQT_QML_LIB -DQT_QUICK_LIB -DQT_WIDGETS_LIB -DUNICODE -DWIN32 -DWIN64 -D_ENABLE_EXTENDED_ALIGNED_STORAGE -D_UNICODE -D_WIN64 -g -std=gnu++23 -x c++ --target=x86_64-unknown-windows-gnu -frelaxed-template-template-args -Wno-unused-variable -Wno-infinite-recursion -Wno-array-bounds -Werror=implicit-function-declaration -Wshadow -Wno-shadow-field-in-constructor-modified -Wno-shadow-ivar -Wuninitialized -Wunused-label -Wunused-lambda-capture -Ifd0/fd7/fd8 -Ifd0/fd7/fd8/fd9 -iquotefd0/fd1/fd2/fd3/fd4/fd5 -isystemfd0/fd10/fd11.4/fd12/fd13/fd9 -isystemfd0/fd10/fd11.4/fd12/fd13 -isystemfd0/fd10/fd11.4/fd12/fd14/fd15 -isystemfd0/fd10/fd11.4/fd12/fd13/fd16 -isystemfd0/fd10/fd11.4/fd12/fd13/fd17 -isystemfd0/fd10/fd11.4/fd12/fd13/fd18 -isystemfd0/fd10/fd11.4/fd12/fd13/fd19 -isystemfd0/fd10/fd11.4/fd12/fd13/fd20 -isystemfd0/fd10/fd11.4/fd12/fd13/fd21 -isystemfd0/fd10/fd11.4/fd12/fd13/fd22 -isystemfd0/fd10/fd23/fd24/fd25/fd26/fd27/fd28.0/fd13/fd29 -isystemfd0/fd10/fd23/fd24/fd25/fd26/fd27/fd28.0/fd13/fd29/fd27 -isystemfd0/fd10/fd23/fd24/fd25/fd26/fd27/fd28.0/fd13/fd29/fd30 -isystemfd0/fd10/fd23/fd24/fd25/fd26/fd27/fd28.0/fd13 -isystemfd0/fd10/fd23/fd24/fd25/fd26/fd27/fd28.0/fd31 -isystemfd0/fd10/fd23/fd24/fd27/fd13 -Ifd0/fd1/fd2/fd3/fd4/fd32 -Ifd0/fd1/fd2/fd3/fd4 -Ifd0/fd1/fd2/fd3/fd4/fd32/fd33/fd13 -ferror-limit=0 -imacrosfd0/fd7/fd8/fd34/fd1/fd2/fd3/fd4/fd5/fd6.cpp /fd0/fd1/fd2/fd3/fd4/fd5/fd6.cpp
Clang-tidy config: {"Checks":"-*,cert-dcl21-cpp,cert-dcl58-cpp,cert-err34-c,cert-err52-cpp,cert-err58-cpp,cert-err60-cpp,cert-flp30-c,cert-msc50-cpp,cert-msc51-cpp,cert-str34-c,cppcoreguidelines-interfaces-global-init,cppcoreguidelines-narrowing-conversions,cppcoreguidelines-pro-type-member-init,cppcoreguidelines-pro-type-static-cast-downcast,cppcoreguidelines-slicing,google-default-arguments,google-explicit-constructor,google-runtime-operator,hicpp-exception-baseclass,hicpp-multiway-paths-covered,misc-misplaced-const,misc-new-delete-overloads,misc-no-recursion,misc-non-copyable-objects,misc-throw-by-value-catch-by-reference,misc-unconventional-assign-operator,misc-uniqueptr-reset-release,mpi-buffer-deref,mpi-type-mismatch,openmp-use-default-none,performance-faster-string-find,performance-for-range-copy,performance-implicit-conversion-in-loop,performance-inefficient-algorithm,performance-inefficient-string-concatenation,performance-inefficient-vector-operation,performance-move-const-arg,performance-move-constructor-init,performance-no-automatic-move,performance-noexcept-move-constructor,performance-trivially-destructible,performance-type-promotion-in-math-fn,performance-unnecessary-copy-initialization,performance-unnecessary-value-param,readability-avoid-const-params-in-decls,readability-const-return-type,readability-container-size-empty,readability-convert-member-functions-to-static,readability-delete-null-pointer,readability-deleted-default,readability-inconsistent-declaration-parameter-name,readability-make-member-function-const,readability-misleading-indentation,readability-misplaced-array-index,readability-non-const-parameter,readability-redundant-control-flow,readability-redundant-declaration,readability-redundant-function-ptr-dereference,readability-redundant-smartptr-get,readability-redundant-string-cstr,readability-redundant-string-init,readability-simplify-subscript-expr,readability-static-definition-in-anonymous-namespace,readability-string-compare,readability-uniqueptr-delete-release,readability-use-anyofallof,bugprone-*,clang-analyzer-*,-clion-*","CheckOptions":[]}
CLion clang-tidy config: {"Checks":"-*,clion-preprocessor-comment-check,clion-virtual-call-in-ctor-or-dtor,clion-empty-decl-or-stmt,clion-simplify,clion-argument-selection-defects","CheckOptions":[]}
Clazy config: level0
DFA Input: global
UnusedIncludesInspection: RemoveNotDirectlyUsed
PP Diagnostics:
clangd crashed. PLEASE CONSIDER adding the following preprocessed files to the crash report.
Code and file paths will be obfuscated. By default, they will NOT be attached and they will NOT be sent.
Files that might cause failure:
file:///C:/Users/Orion/CLionProjects/QT/Source%20Files/main.cpp, compilerDiags=WAITING, highlightings=WAITING, DFAInput=WAITING, CLion-clang-tidy=WAITING, Clazy=WAITING, clang-tidy=WAITING
java.lang.Throwable
at com.intellij.idea.IdeaLogger.error(IdeaLogger.java:127)
at com.intellij.openapi.diagnostic.Logger.error(Logger.java:194)
at com.jetbrains.cidr.lang.daemon.clang.clangd.lsp.server.ClangCrashHandler$DefaultClangCrashReporter.report(ClangCrashHandler.java:1236)
at com.jetbrains.cidr.lang.daemon.clang.clangd.lsp.server.ClangCrashHandler.lambda$doAdvancedCrashReport$6(ClangCrashHandler.java:360)
at com.jetbrains.cidr.lang.daemon.clang.clangd.lsp.server.ClangCrashHandler.withCrashLanguageService(ClangCrashHandler.java:399)
at com.jetbrains.cidr.lang.daemon.clang.clangd.lsp.server.ClangCrashHandler.doAdvancedCrashReport(ClangCrashHandler.java:332)
at com.jetbrains.cidr.lang.daemon.clang.clangd.lsp.server.ClangCrashHandler.lambda$reportCrash$2(ClangCrashHandler.java:190)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:188)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$12(CoreProgressManager.java:608)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:683)
at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:639)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:607)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:60)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:175)
at com.intellij.openapi.progress.util.BackgroundTaskUtil.runUnderDisposeAwareIndicator(BackgroundTaskUtil.java:365)
at com.intellij.openapi.progress.util.BackgroundTaskUtil.runUnderDisposeAwareIndicator(BackgroundTaskUtil.java:343)
at com.jetbrains.cidr.lang.daemon.clang.clangd.lsp.server.ClangCrashHandler.lambda$reportCrash$3(ClangCrashHandler.java:182)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)