Unable to upgrade UUPS contract

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I have deployed a contract which was UUPS upgradable contract unfortunately I did not use the @ to define the version.
Proxy address and Implementation address is verified.
I wanted to add new functions so I copied the verified Implementation contract's code added new function and tried to deploy it. It is getting failed.
Also in failed transaction it is calling upgradeTo instead of upgradeToAndCall

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Please provide more info: what are the addresses, how you are deploying the new implementation, how you are trying to upgrade the proxy, what exact errors you are getting.

See How do I ask a good question?

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Actually I figured it out. For some reason remix was calling upgradeTo instead of upgradeToAndCall causing upgradation to fail. I manually called upgradeToAndCall and it worked!

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