Here is the response that I received when I could not right click the FP in the chest:

Dear J.R,

Normally it should exactly as you described, however this can mean that your FS can be corrupted. To better understand the issue, please send me a support package, so I can check your File-Shield log to see if any changes were made, when you were adding the file as an exception.

To generate the support package please follow these steps:

  1. Start avast!
  2. Help → Feedback->scroll to the GENERATE SUPPORT PACKAGE part
  3. Tick BASIC INFORMATION, LOG FILES and MINI-DUMPS
  4. Click the GENERATE NOW button

and send me the generated *.zip file as an attachment to this email.

We will try to find the reason and a therefore create an appropriate fix for this.

Thank you!