When  the fragments of the source  segment  are locked as it is in the translation memory, a target segment is inserted correctly

When  the fragments of the source  segment  are NOT locked as it is in the translation memory, a target segment is inserted as a text description of the tags within locked fragment. The segment is show with text of a tag in the Translation Result window too.

If replace the tags within locked fragment  to its text description, no any Tag Errors are shown after QA-check, although source include tag-as-tag, but target include tag-as-text.

But if we change the text of tag description, QA-check finds an error.

Moreover, Regular expressions verification finds  the text description  of tag-as-tag in the locked fragments of a translated segment!

It seems, that any tag inside locked fragment of a segment is presented as a text for SDL Studio.

it was checked in 2014-2017 version

So we have a lot of problem:

1. It is possible incorrect pretranslating
2. It is impossible to find tag erros
3. It is possible wrong matching when regular expression qa-check is used.
4. It is ambiguous Translation Memory content