Background of the issue:
I am trying to import a Glossary-CSV with correct formatting into WPML. All the terms get imported, but they soon disappear from the glossary list. When translating, some terms get glossary suggestions, indicating that part of the import worked. However, I can't see or edit the glossary list.
Symptoms:
The glossary list is empty after importing terms, and the translation engine only suggests glossary terms that have to be entered awkwardly.
Questions:
Why do the glossary terms disappear after import?
How can I edit the glossary list after importing terms?