As per my experience , you should follow these tips- Resetting your passphrase seems to have caused the loss of your data. Unfortunately, in many encryption-based systems, a passphrase reset often results in data becoming inaccessible, as the data is encrypted using that passphrase. If you can remember your old passphrase, there's a possibility you could recover your data. However, since you've already reset it, the chances are slim. The browser acting strangely after an update might have contributed to this issue. It's a good practice for software to provide clearer warnings about the consequences of certain actions like passphrase resets.
Thanks in advance!