Iñaki Lopez de Luzuriaga 

The user Interface may have changed a bit since the date of that post. Maybe this other post can guide you to find wher it is in the new user interface:

https://multifarious.filkin.com/2013/07/12/fields_attributes/

Iñaki Lopez de Luzuriaga said:

This is a 2023 Trados version, latest, as far as I know). I cannot find the whole version number

The full version of Trados Studio is in the Help > About ribbon

Hi Jesús, thanks for the hints. I had found that answer/link too, but I cannot find that place. When I get to that "Translation Memories View", I find the capture attached here.What should I do there?

Iñaki Lopez de Luzuriaga 

Go to your Project Settings (alternatively you can access the same settings from the Translation Memories view in the left pane), select the translation memory, click on Settings button to open the Translation Memory Settings.

Select the Fields section on the left hand side. Now do you see anything Multiple under the Type column, such as in this sample? They may be the issue.

Can you confirm that your build is Trados Studio 2022 SR2, 17.2.9.18688?

Yes, I tried that option before, but did not know what to do there, since I have the Type column activated as "Text", not "Text (Multiple)", but the help link I provided on my first post above suggests I should disable "allow multiple values", not enable...

Iñaki Lopez de Luzuriaga 

Can you confirm that your build is Trados Studio 2022 SR2, 17.2.9.18688?

I guess the connectors solid or dashed lines? I guess they are not like this, right?

Could you try with a fresh and empty TM without fields? If it works, you can then later import the translation units to another TM.

Exactly: Trados Studio 2022 SR2 - 17.2.9.18688.  I do not know where these connectors are... I could try with an empty TM.

Iñaki Lopez de Luzuriaga 

Those connectors are in the Alignment project. Such as these dassed lines (unconfirmed):

You must have seen these connectors...

When everything is connected (aligned) in the Alignement project then you import the alignements to a TM:

O! Yes, most of it is connected, but I have realized there are at least two loose segments. Perhaps is that the reason? O my, as it happens, now I cannot edit and make the connections in the alignment... (disabled)

 Iñaki Lopez de Luzuriaga 

Iñaki Lopez de Luzuriaga said:

there are at least two loose segments. Perhaps is that the reason?

I don’t think so, because there were 0 imported alignment pairs. There are some disconnected pairs, but there should be at least some pairs imported… Try confirmig one pair (solid connector), save the project and Import into Translation Memory:

Have you tried with a new & empty TM?

I connected all segments, as far as I see. Still I get the message that (only) 4 segments could be imported to the target TM, but not most of them.

I tried with a new and empty TM. This is the message I got: "154/168 alignment pairs added to TM. Could not import duplicates, disconnected segments or pairs that do not match your TM Import options". All connectors are solid. Of course, I had to do some fixes (splits, blank segments connected to blank source segments...). Disappointing so far.