A strange run issue

I encountered a strange operational issue.
After packaging my software in. msixbundle format, I installed and tested it locally.
When clicking on the program icon in the start menu, an error occurred and a DLL could not be found. However, after confirmation, the main interface of the program can be opened. In fact, this DLL and the program's exe are in the same directory.
But in the program files \ windows app \ myapp directory, clicking on this exe will allow the program to execute normally.
My program is a. NET 8 winform program.
How should I do?