Unstructured not working in deployment environment

[Kushagra0409]

I am trying to run unstructured 0.18.11 in a dockerised env, I added the following packages

PyMuPDF==1.26.3
unstructured==0.18.11
langchain-openai==0.1.8
pytesseract==0.3.13
pdfminer.six==20250506
pi-heif=1.0.0
unstructured-inference==1.0.5
pdf2image==1.17.0
unstructured-pytesseract==0.3.15

And the apt-get packages
apt-get install -y tesseract-ocr tesseract-ocr-eng tesseract-ocr-osd libtesseract-dev poppler-utils libmagic-dev

But still I can't get the chunks, it returns output as empty. It works in my local env, but I'm unable to figure out what dependencies are missing for the cloud.

Could someone please help me in what is missing here, like apt get packages, pip packages or env vars. Running in ubuntu container, I use tesseract ocr only.