Able to download one MultiTerm termbase from App Store, but not a similar one...

I have a Studio 2019 Freelance Plus licence, and thus MultiTerm 2019, and have managed to download the following termbase without difficulties:

https://appstore.sdl.com/language/app/multiterm-glossary-safety-of-machinery/1044/

However, on trying to download the following termbase provided by the same user:

https://appstore.sdl.com/language/app/multiterm-glossary-resistance-welding/1053/

I have exactly the same problem described by Catherine Rushton here:

https://community.sdl.com/product-groups/translationproductivity/f/multiterm/28131/sharing-termbases-in-sdl-appstore/92493?focus=true#92493

Is there an obvious reason why one should download while the other apparently rejects my licence, even though the specified requirements appear to be the same for both?