IronOcr reads text locally, but blank text in remote server

Whenever I attempt to read a PDF via OCR, it works correctly when running locally on my development machine, and all text parses correctly. However, the same code (and same license) in our remote server is reading blank text.

In the screenshot below, this is a remote debugger attached to the server and while I've confirmed it does read the file correctly (into fileBytes), invoking ReadPdf reads an empty string for text and finds no pages.

I'm not sure what can cause. I have checked folder permissions in Temp, set a custom temp directory, and still it reads blank. It also shows the same behavior when reading TIFF files (ReadMultiFrameTiff(...)) even when a file path is used in the parameter.

Note: PdfReader is another library that is only used to get the page numbers.

Thanks!