We're sorry to hear about the issue and for not getting back to you earlier.
Do you see an error message while you try to edit or download your projects? What type of projects are they?
Have you tried to use another browser, such as Chrome or Safari? Do you see any differences? Please check your Internet connection and clear your caches/cookies before logging in. Testing in incognito or privacy mode may help.
Can you send a screenshot so we can see what you're experiencing?