请问询问英签进展得到这样的回复是什么意思？

Your UK visa application has been received and is under consideration. We aim to process non settlement applications within 15 working days (unless you have opted for the Priority Visa service), and Settlement applications within 60 working days.

Unfortunately, the processing of your application has been non-straightforward and we have been unable to resolve your application within these customer service targets. Please be assured that we will continue to progress your application to enable a decision to be made as soon as possible. We will notify you via e-mail once your application has been decided.

Please do not attend the application centre until you have been contacted by the VAC. This is an automated message - do not respond to this email address as incoming mail is not answered. UKVI contact details can be found at www.gov.uk/contact-ukvi-outside-uk

Yours sincerely
Beijing Visa Section