If you created a pin board recently and suddenly you no longer see it under your profile, you’re not alone. There is a known issue currently happening with Pinterest boards. See the info we found on the support page:
Issue: Missing Boards & New Boards Not Appearing in Lists
posted this on Jul 24 22:10
Update 7/26 at 11AM: While many missing boards have been restored to user profiles, additional users continue to be impacted. We’re getting closer to resolving the issue for all users. No action is required from affected users at this time - please check back here for updates and thanks for your patience!
Issue description: Some users are reporting that their new boards are not appearing on either:
1) The list of boards on their profile
2) Their list of boards available when pinning
We’ve confirmed an issue, and our engineers are working on resolving it as quickly as possible.
Note: while we work on this issue, you may be able to access your board by going to the “Pins” tab on your profile and clicking the board name at the bottom of a pin.
Thank you for your patience!
For more info, go to the Pinterest Support Page at: https://support.pinterest.com/forums/20589421-known-issues