Changing schema.json in backend to a previous state, now new content added via CMS is undefined?

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Hello,

I accidental deleted a relational content field from Content-Type Builder. To go back I decided to grab the old schema.json files i had in my remote git hub repo. Put them in my local.

I did a rebuild. The changes are in the CMS. However now when I add new attributes values via the CMS and then try to output it via GraphQL I get Cannot read properties of undefined.
I am able to output the old values if I delete the new ones.

What should I do?