Project cannot be deleted after task file is moved/deleted: "Delete file failed: file not found"

[little-by]

When I changed the save file for a task (equivalent to deleting the original file), I found that my previously created project was still there, but I couldn't delete it. Deleting it resulted in the error message: "Delete file failed: file not found."

My Obsdian version is 1.12.7, and my TaskGenius version is v9.13.1.