Can't complete digital signature

In Acrobat Reader DC, I'm trying to digitally sign a document which has a clickable field. I click the field, it shows me my digital ID (certificate), I click continue, it shows me the appearance and has a big highlighted 'Sign' button. I click Sign and... nothing. No password prompt, no error message, no indication that anything has happened, no matter how many times I click Sign. I can back out, so reader isn't locked up, but the document isn't signed.

Earlier today, I had tried to sign it, but had forgotten my certificate password and had to go through the process of reinstalling my certificate. That process seemed to work correctly, the certificate shows up in the right spots, it's marked as trusted for signing, but it isn't working (and there are no error messages). Any suggestions as to how I can make this work?