I'm working with an instructor who noticed that when she tries to view a PowerPoint containing Chinese characters in the LMS, all characters are replaced with white squares. She was able to view files with Chinese characters previously, which leads me to believe that DocViewer may have difficulties displaying certain character sets. Is this a known issue? Are there any work arounds out there? I did a cursory search of the community but was unable to find anything.
Since @Renee_Carney confirmed in the Feature Idea https://community.canvaslms.com/ideas/9567 , that this is a known bug, I'm going to go ahead and assume as answered for your question. Did you happen to add your use case to the problem like Renee suggested? (see the https://community.canvaslms.com/docs/DOC-10158-4152719652?sr=search&searchId=937b672d-7935-45bc-ad32...)