[x] I've tried to disable other add-ons to see if there are any interactions present
[x] My issue disappears when I hold shift while starting Anki.
[x] I've checked if anyone else reported this problem before by looking through the issue reports. I also checked to see if there is a section about known issues in the add-on description, documentation, or README.
Information about your Anki set-up
Please fill out the section corresponding with your Anki version:
If you are using Anki 2.1
Please open Anki, go to Help → About, click on "Copy Debug Info", and paste the result between the backticks below (if the button does not appear you are using an older version of Anki 2.1 and will need to update first):
Error message (if any)
If you've received an error message, please copy and paste it between the backticks below:
Problem description
Add on works perfectly with 4 files, but when I add more, regardless of size or filetype, the addon cannot display them
Checklist
Please replace the space inside the brackets with an x if the following items apply:
Information about your Anki set-up
Please fill out the section corresponding with your Anki version:
If you are using Anki 2.1
Please open Anki, go to Help → About, click on "Copy Debug Info", and paste the result between the backticks below (if the button does not appear you are using an older version of Anki 2.1 and will need to update first):
Error message (if any)
If you've received an error message, please copy and paste it between the backticks below: