Character Sheet Freeze

When I go onto a character's sheet and click the gear icon next to their name to edit them, the page freezes and becomes unworkable. I cannot scroll up or down, I cannot change menus or roll dice, and even closing the tab has a 1-second delay between clicking the button and the tab actually closing. Before the backpack update, there were no such problems, so it must be a problem with that. Please fix this as soon as you can!

Please post a link to your character sheet so someone can look into it for you.