Settings for preview sizes are ignored

[Demian98]

I used the commands from the documentation to generate previews just for some specific sizes:

./occ config:app:set --value="32 64 1024"  previewgenerator squareSizes
./occ config:app:set --value="64 128 1024" previewgenerator widthSizes
./occ config:app:set --value="64 256 1024" previewgenerator heightSizes

Here is a screenshot from the database:

Then I followed the instructions to delete the existing previews and regenerate:

1. Remove the your-nextcloud-data-directory/appdata_*/preview directory
2. run occ files:scan-app-data
3. Regenerate with occ preview:generate-all

But these settings have no effect. I still get previews in many sizes up to 4096 after running the occ preview:generate-all.

Please let me know what I'm doing wrong, every help or hint is welcome :)