testFactorGraph is Failed

[lfwin]

Hi,
After installation, I run make check, everything is okey, but testFactorGraph is failed.

`

test cases: 9 | 8 passed | 1 failed
assertions: 29 | 23 passed | 6 failed

  Start  9: testLevenbergMarquardt

9/22 Test #9: testLevenbergMarquardt ........... Passed 0.01 sec
Start 10: testMarginalCovariance
10/22 Test #10: testMarginalCovariance ........... Passed 0.01 sec
Start 11: testNumericalJacobian
11/22 Test #11: testNumericalJacobian ............ Passed 0.01 sec
Start 12: testOrdering
12/22 Test #12: testOrdering ..................... Passed 0.01 sec
Start 13: testSPQR
13/22 Test #13: testSPQR ......................... Passed 0.01 sec
Start 14: testScalar
14/22 Test #14: testScalar ....................... Passed 0.00 sec
Start 15: testSchurComplement
15/22 Test #15: testSchurComplement .............. Passed 0.00 sec
Start 16: testSchurComplementDenseSolver
16/22 Test #16: testSchurComplementDenseSolver ... Passed 0.00 sec
Start 17: testSophus
17/22 Test #17: testSophus ....................... Passed 0.00 sec
Start 18: testSparseCholesky
18/22 Test #18: testSparseCholesky ............... Passed 0.00 sec
Start 19: testSquareRootCholesky
19/22 Test #19: testSquareRootCholesky ........... Passed 0.00 sec
Start 20: testVariables
20/22 Test #20: testVariables .................... Passed 0.00 sec
Start 21: testlinearization
21/22 Test #21: testlinearization ................ Passed 0.00 sec
Start 22: testprojection
22/22 Test #22: testprojection ................... Passed 0.00 sec

95% tests passed, 1 tests failed out of 22

Total Test time (real) = 0.15 sec

The following tests FAILED:
8 - testFactorGraph (Failed)
Errors while running CTest
make[3]: *** [tests/CMakeFiles/check.dir/build.make:78: tests/CMakeFiles/check] Error 8
make[2]: *** [CMakeFiles/Makefile2:478: tests/CMakeFiles/check.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:485: tests/CMakeFiles/check.dir/rule] Error 2
make: *** [Makefile:279: check] Error 2

`
Ubuntu 20.04, python3.8.10