Why does my samsung tablet E say try again in 1440 minutes?

Locked out of my Samsung tablet E. It has an arrow pattern which I don't remember. But then it asks for a pin, which I do. This wasn't a problem cause I could unlock when prompted for the pin. However after the last update, it asks to try again after 1440 minutes! Before it would let you try pin after 30 seconds. I don't want to lose the data.

Any suggestions?

Please help!

Thank you

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