Segfault in shiboken_wrapper.sh at pyside6 > 6.7.2

[11/706] Running generator for QtTest...
FAILED: sources/pyside6/PySide6/QtTest/mjb_rejected_classes.log sources/pyside6/PySide6/QtTest/PySide6/QtTest/qtest_pysideqtoucheventsequence_wrapper.cpp sources/pyside6/PySide6/QtTest/PySide6/QtTest/qabstractitemmodeltester_wrapper.cpp sources/pyside6/PySide6/QtTest/PySide6/QtTest/qsignalspy_wrapper.cpp sources/pyside6/PySide6/QtTest/PySide6/QtTest/qtest_wrapper.cpp sources/pyside6/PySide6/QtTest/PySide6/QtTest/qttest_module_wrapper.cpp ./pyside6/PySide6/QtTest/mjb_rejected_classes.log ./pyside6/PySide6/QtTest/PySide6/QtTest/qtest_pysideqtoucheventsequence_wrapper.cpp ./pyside6/PySide6/QtTest/PySide6/QtTest/qabstractitemmodeltester_wrapper.cpp ./pyside6/PySide6/QtTest/PySide6/QtTest/qsignalspy_wrapper.cpp ./pyside6/PySide6/QtTest/PySide6/QtTest/qtest_wrapper.cpp ./pyside6/PySide6/QtTest/PySide6/QtTest/qttest_module_wrapper.cpp 
cd ./pyside6/PySide6/QtTest && ./src/build/.qfp/bin/shiboken_wrapper.sh ./shiboken6/generator/shiboken6 --generator-set=shiboken --enable-parent-ctor-heuristic --enable-pyside-extensions --enable-return-value-heuristic --use-isnull-as-nb-bool --include-paths=./pyside6/PySide6:/usr/lib/qt6/mkspecs/linux-g++:/usr/include/qt6:/usr/include/qt6/QtCore:/usr/include/qt6 --typesystem-paths=./pyside6/PySide6:./pyside6/PySide6:./pyside6/PySide6/QtTest --output-directory=./pyside6/PySide6/QtTest --license-file=./pyside6/PySide6/QtTest/../licensecomment.txt --lean-headers --api-version=6.8.0 ./pyside6/PySide6/QtTest_global.h ./pyside6/PySide6/QtTest/typesystem_test.xml
qt.shiboken: (test) CLANG v0.64, builtins includes directory: /usr/lib/clang/20/include
(test) clang_parseTranslationUnit2(0x0, cmd[18]=-isystem/usr/lib/clang/20/include -isystem/usr/lib/gcc/x86_64-pc-linux-gnu/14.2.1/../../../../include/c+/14.2.1 -isystem/usr/lib/gcc/x86_64-pc-linux-gnu/14.2.1/../../../../include/c/14.2.1/x86_64-pc-linux-gnu -isystem/usr/lib/gcc/x86_64-pc-linux-gnu/14.2.1/../../../../include/c/14.2.1/backward -fPIC -Wno-constant-logical-operand -x c+ -std=c+17 -I./pyside6/PySide6 -I/usr/lib/qt6/mkspecs/linux-g+ -I/usr/include/qt6 -I/usr/include/qt6/QtCore -I/usr/include/qt6 "-DQT_ANNOTATE_ACCESS_SPECIFIER(a)={}attribute{}((annotate(#a)))" "-DQT_ANNOTATE_CLASS(type,...)=static_assert(sizeof(#{}VA_ARGS{}),#type);" -DQSIMD_H /tmp/QtTest_global_HupUUH.hpp)
(test)     [7s] Generated class model (751).                                [OK]
(test)     [7s] Generated enum model (6).                                   [OK]
(test)     [7s] Generated namespace model (208).                            [OK]
(test)     [8s] Resolved typedefs (205).                                    [OK]
(test)     [8s] Fixed class inheritance.                                    [OK]
(test)     [8s] Checked for inconsistencies in class model.                 [OK]
(test)     [8s] Checked for inconsistencies in typesystem (5559).           [OK]
(test)     [8s] Checked for inconsistencies in function modifications.      [OK]
(test)     [8s] Wrote log files.                                            [OK]
./src/build/.qfp/bin/shiboken_wrapper.sh: line 3: 2912293 Segmentation fault      (core dumped)

shiboken_wrapper.sh contains this:

#!/bin/bash
export LD_LIBRARY_PATH=/usr/lib:$LD_LIBRARY_PATH
$@