WARNING | RapidOCR returned empty result!

2026-01-14 18:13:54 | INFO | detected formats: []
2026-01-14 18:13:54 | INFO | Going to convert document batch...
2026-01-14 18:13:54 | INFO | Initializing pipeline for StandardPdfPipeline with options hash c6935ab8ef64d37502f10c34057f654a
2026-01-14 18:13:54 | INFO | Loading plugin 'docling_defaults'
2026-01-14 18:13:54 | INFO | Registered picture descriptions: ['vlm', 'api']
2026-01-14 18:13:54 | INFO | Loading plugin 'docling_defaults'
2026-01-14 18:13:54 | INFO | Registered ocr engines: ['auto', 'easyocr', 'ocrmac', 'rapidocr', 'tesserocr', 'tesseract']
2026-01-14 18:13:55 | INFO | Accelerator device: 'cpu'
[INFO] 2026-01-14 18:13:55,166 [RapidOCR] base.py:22: Using engine_name: onnxruntime
[INFO] 2026-01-14 18:13:55,167 [RapidOCR] main.py:53: Using /data/docling/models/RapidOcr/onnx/PP-OCRv4/det/ch_PP-OCRv4_det_infer.onnx
[INFO] 2026-01-14 18:13:55,217 [RapidOCR] base.py:22: Using engine_name: onnxruntime
[INFO] 2026-01-14 18:13:55,217 [RapidOCR] main.py:53: Using /data/docling/models/RapidOcr/onnx/PP-OCRv4/cls/ch_ppocr_mobile_v2.0_cls_infer.onnx
[INFO] 2026-01-14 18:13:55,241 [RapidOCR] base.py:22: Using engine_name: onnxruntime
[INFO] 2026-01-14 18:13:55,242 [RapidOCR] main.py:53: Using /data/docling/models/RapidOcr/onnx/PP-OCRv4/rec/ch_PP-OCRv4_rec_infer.onnx
2026-01-14 18:13:55 | INFO | Auto OCR model selected rapidocr with onnxruntime.
2026-01-14 18:13:55 | INFO | Loading plugin 'docling_defaults'
2026-01-14 18:13:55 | INFO | Registered layout engines: ['docling_layout_default', 'docling_experimental_table_crops_layout']
2026-01-14 18:13:55 | INFO | Accelerator device: 'cpu'
2026-01-14 18:13:55 | INFO | Loading plugin 'docling_defaults'
2026-01-14 18:13:55 | INFO | Registered table structure engines: ['docling_tableformer']
2026-01-14 18:13:55 | INFO | Accelerator device: 'cpu'
2026-01-14 18:13:55 | INFO | Processing document 5247cfce324e42f0a869b4c0f932d0bf.pdf
2026-01-14 18:13:56 | WARNING | RapidOCR returned empty result!
2026-01-14 18:21:00 | INFO | Finished converting document 5247cfce324e42f0a869b4c0f932d0bf.pdf in 425.25 sec.
2026-01-14 18:21:00 | INFO | task 5247cfce324e42f0a869b4c0f932d0bf success