I've enabled the GitHub Power-up and have been using it to tie GitHub issues to Trello cards.
It's been working fine, but issues above #1500 are not showing up when I search for issues in Trello.
Recreate issue:
Click card
Click 'GitHub' under 'Power-ups'
Click 'Attach issue...'
Search for issue number (ex. 1500)
Issues that have a number higher than 1500 do not show up on the list!
Any ideas on what the issue might be? Is there some sort of limit?