LR Transporter

I’m hoping you might have a suggestion regarding Lightroom Classic metadata behavior.

I’m running Lightroom Classic on a Mac and testing LR/Transporter to import keywords from a CSV file.

What’s puzzling is that:

• A single-image import works.
• A small batch of 5 images works.
• Larger batches (10+ images) appear to do nothing.
• No error message is displayed.
• The images are selected before running the import.
• The CSV format and field mapping are the same as the tests that worked.

While researching, I came across your comments regarding Helper.lrdata and metadata caching issues. It made me wonder whether Lightroom might be accepting metadata changes but not displaying them correctly, or whether a cache issue could make an import appear to fail.

Have you ever seen Lightroom Classic behave this way with metadata imported by a plugin, or do you have any suggestions on what to investigate next?

Thank you for your time.