First input file is the only one processed

Our input folder contains 11 files. All appear to be read in:
Successfully read file: ./input/innovationqkb.glossary.WordPress.2024-07-27.xml.md
JSON file saved successfully.
Successfully read file: ./input/innovationqkb.WordPress.2024-07-26.xml.md
JSON file saved successfully.
Successfully read file: ./input/ipcomkb.WordPress.2024-07-26.xml.md
JSON file saved successfully.
Successfully read file: ./input/iqideaskb.WordPress.2024-07-26.xml.md
JSON file saved successfully.
Successfully read file: ./input/ipcomkb.faq.WordPress.2024-07-27.xml.md
JSON file saved successfully.
Successfully read file: ./input/priorartdatabasekb.WordPress.2024-07-26.xml.md
JSON file saved successfully.
Successfully read file: ./input/iqideaskb.faq.WordPress.2024-07-27.xml.md
JSON file saved successfully.
Successfully read file: ./input/innovationqkb.faq.WordPress.2024-07-27.xml.md
JSON file saved successfully.
Successfully read file: ./input/priorartdatabasekb.glossary.WordPress.2024-07-27.xml.md
JSON file saved successfully.
Successfully read file: ./input/iqideaskb.glossary.WordPress.2024-07-27.xml.md
JSON file saved successfully.
Successfully read file: ./input/priorartdatabasekb.faq.WordPress.2024-07-27.xml.md
Pretraining set created.

However, only the first file: ./input/innovationqkb.glossary.WordPress.2024-07-27.xml.md has question/answer pairs produced.

The augmentoolkit output messages do not appear to give an indication as to whether there is an issue.
COMPLETED PHASE 0
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/a0db9260-500e>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/a7bc5e7d-950c>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/bd42e735-6bba>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/c6ddcde3-8678>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/15a96815-222f>
FAILED TO GENERATE QUESTIONS!
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/91488b07-8c85>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/f8913bd2-afb5>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/8ef1f903-2906>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/ee46ce5b-8461>
FAILED TO GENERATE QUESTIONS!
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/86b05937-c2a0>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/1b6b185c-b3fd>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/0adb9229-3210>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/d51cf6a9-1745>
FAILED TO GENERATE QUESTIONS!
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/921636fe-4076>
FAILED TO GENERATE QUESTIONS!
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/456d0805-b8c7>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/f09a3fd9-3fcf>
FAILED TO GENERATE QUESTIONS!
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/bf45b67b-81da>
FAILED TO GENERATE QUESTIONS!
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/01b56723-abdf>
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/b89ac365-1286>
FAILED TO GENERATE QUESTIONS!
Output written to /tmp/augmentoolkit/original/output/question_generation_generations/question_generation_generations/1f0d3583-f9e7>
COMPLETED PHASE 1

Each file written in phase 1 appears to correspond to questions/answers related to a paragraph in the document: ./input/innovationqkb.glossary.WordPress.2024-07-27.xml.md

What are some possible reasons that files in the input folder are skipped?