The first problem is related to the source-language attribute in the <file> element. You are using en_devel which is not a valid language attribute, but this prevents the alignment. Changing it into en will fix this issue.

The second problem with the comment is related to a bug that now exists for more than 15 years in the underlying Microsoft MSXML parser and is related to using the xmlns attribute in the <xliff> element.

I would recommend copying the standard XLIFF rule into the Custom rules or directly into the project and adapt it. The Meta Data entry parent::*/descendant::note must be changed into parent::*/descendant::pdns:note. This will fix the issue. See https://docs.sdl.com/785448/403814/sdl-passolo-help/working-with-xml-namespaces for more details.

Hi again,
I have been unable to verify the suggested fix for importing XLIFF notes as passolo comments.
I have done the following, with many slight variations but all to no avail:

1) Open LPU1
2) Right-click the XLIFF source and select String List Settings --> Properties Source List popup appears
3) In the popup the Parser is listed as "Add-in XML Parser". Click Setup... --> XML Parser Settings popup appears
4) Drag XLIFF rules from Default rules to the Project
5) Select the XLIFF rules in the project and renamed to XLIFF with notes
6) Select the renamed XLIFF rules in the project and exported it to an xfg file
7) Opened the xfg file in Notepad++ (NOTE: XML parser warns that UTF-16 is declared in the header, but contents are UTF-8)
8) Edited the xfg file as described by you, so the relevant text reads descendant::pdns::note
9) Saved the xfg file
10) back in the popup, select "XLIFF with notes" rules and the project, and imported the edited xfg file.
11) sub-popup wants me to select which rules I want to import, I select all. --> Now the Custom rules folder is also full of copied rules!
12) Left popup with OK and tried to generate/update string list.
Result: No change,  the Comment fields are still not populated.


Please can you tell me what I'm doing wrong and give the correct steps in detail.  I cannot find them in the documentation.
Thanks in advance.

Problem solved with Peter by changing some project and XML rule settings.

Correct.
Sorry -- I could not upload the full sized PNG, but maybe this helps.

I am having same/similar problem. I have setup according to this thread. What should it look like in the incoming XLIFF file? I want to have two custom fields coming in from XLIFF and don't know how to define XFG to get to work. 

Many years ago, Microsoft had a quite nasty bug in their MSXML components that are used in the background by Passolo to read and write XML files. This bug was related using XML namespaces like this:

Result of this bug is that the content of some XML elements can’t be imported into the Passolo projects. The development team has overcome this problem by defining and implementing a special namespace indicator called pdns. More information see here.

When this additional keyword is used in XPATH expressions the Microsoft bug be fixed. Unfortunately this has to be done for each and every rule. As an example the XLIFF meta data for <context-group> XPATH expression must be changed from

parent::*/context-group/context/attribute::context-type | parent::*/context-group/context,valueid

to

parent::*/pdns:context-group/pdns:context/attribute::context-type | parent::*/pdns:context-group/pdns:context,valueid

Many years ago, Microsoft had a quite nasty bug in their MSXML components that are used in the background by Passolo to read and write XML files. This bug was related using XML namespaces like this:

Result of this bug is that the content of some XML elements can’t be imported into the Passolo projects. The development team has overcome this problem by defining and implementing a special namespace indicator called pdns. More information see here.

When this additional keyword is used in XPATH expressions the Microsoft bug be fixed. Unfortunately this has to be done for each and every rule. As an example the XLIFF meta data for <context-group> XPATH expression must be changed from

parent::*/context-group/context/attribute::context-type | parent::*/context-group/context,valueid

to

parent::*/pdns:context-group/pdns:context/attribute::context-type | parent::*/pdns:context-group/pdns:context,valueid

Achim Herrmann said:

Unfortunately this has to be done for each and every rule.

Just for posterity, Mr Herrmann, can you make it clearer what kind of "rule" you mean here, and a click-path to find the relevant ones?
I remember I only changed one line to unblock the import of XLIFF notes along with the source strings into my project.