The problem is fixed.  I mentioned the fix in another message thread called "How to Have Fabrication 2019 and Fabrication 2023 Co-Exist in the Same PC?" in this forum.

Despite the fact that I have fixed the problem, I don't know why the "fix" can prevent this problem from happening and why the problem happened in the first place.  Therefore, I cannot call this issue as fixed.  If someone knows why, please let me know.  Thanks.

JC_BL