Thank you for contacting us on this and sorry for the delay in our response.
May I please clarify with you if the issue is reproduced in all the cases or it depends on a context where you are typing?
Can you please check if you would get a list of snippets in the completion list when you are inside a method in your class file?
Also, I kindly ask you to send us a screenshot related to the issue if this is acceptable to you.
As a side note, all the details about the Code Snippets functionality is available for you here.
Looking forward to your response and will be happy to assist.