Strange copying action

Files are being moved to the trash unexpectedly.

I have a rule running on folder A and it matches any file. The rule has 2 actions:

1. Copy files to folder B

2. Move files to the Trash

Actual result:
The files were actually copied to folder B, but were immediately moved to the trash. The files in folder A remain.

Expected result:
The files should be copied from folder A to folder B. The copied files in folder A are moved to the trash. None of the files in folder B are moved to the trash.

Can anyone explain what is happening?

When you copy a file, subsequent actions act on the copied file, not the original. Just do a Move operation if you don't want the file at the original location.