It appears that there was an issue with reading the file, possibly due to an encoding issue. Let me try reading the file using a different approach that might handle potential encoding issues more effectively.It appears that the file identified as 'glue.md' is not a markdown file but a PDF document. This indicates our first potential issue as the file extension does not match the file content. Let me correct this misunderstanding by attempting to extract text from the PDF document of 'glue.md' using a PDF reading approach. Then, I will proceed to review the second uploaded PDF file named 'S17-2001.pdf' for comparison to identify the issue hinted at regarding the misrepresented scoring range.The content extracted from the incorrectly labeled 'glue.md' PDF appears to be the start of a proceedings document from the 11th International Workshop on Semantic Evaluations (SemEval-2017), rather than specific content related to GLUE or scoring ranges. 

This indicates a mislabeling issue. However, since this content does not directly relate to our hint about misrepresented scoring range comparisons, let's proceed to extract text from the correctly identified 'S17-2001.pdf' file to further investigate the hint provided.I encountered an issue reading the 'S17-2001.pdf' document, which might indicate a problem with the PDF file's format or an error in processing the document. Since the current approach to extract text directly from the 'S17-2001.pdf' file was unsuccessful, we'll have to consider alternate strategies to address the hint provided regarding the misrepresented scoring range. 

Unfortunately, without being able to extract and review the content of 'S17-2001.pdf', I cannot directly address the hinted issue regarding the misrepresented scoring range. 

Given the limitations encountered, we can conclude a potential issue based on the encountered obstacles:

1. The mislabeling of the 'glue.md' file, which is actually a PDF and its content doesn't match the expected description.
2. The inability to access the content of 'S17-2001.pdf' to verify the scoring range description due to a reading error, suggesting a potential issue with the file format or corruption.

For a deeper investigation and resolution, access to readable and correctly formatted documents would be needed.