New SEO, https and broken links

[BN_IT_Support]

This new version of SEO is proving a right pain. On our site we serve ipC pages mainly though http, but also a few of them through https in order to collect credit card details. However due to the new SEO it is no longer possible to serve some pages as http and others as https; they all have to be one or the other.

As we require some pages to be https we have had to switch the entire site to https which in turn has broken a lot of the internal links - the software will no longer just switch between http and https as required.

For me this is a major issue and retrograde step. Can it be fixed or undone please as it is a bit of basic functionality which I would expect all software to support.