In case of problems with Chrome Autofill, please follow these steps to generate meaningful bug reports:
If you feel comfortable, please provide a screenshot, screen recording or save the website. This simplifies our debugging. If these artifacts contain personal information, please reach out to us (e.g. via a bug report) before attaching them to a publicly visible bug report.
In case you have any problems filling or saving credit cards, please also share a screenshot of chrome://sync-internals/. Note that this contains your email address so you may reach out to us first, before uploading this to crbug.com/
Note that the password manager is architecturally a separate component. Use chrome://password-manager-internals instead of chrome://autofill-internals.