Some of my text is randomly appearing with yellow highlights

It looks like in the code, you have <mark> tags around everything that is highlighted. If you remove them, it will go away.

The <mark> HTML element represents text which is marked or highlighted for reference or notation purposes due to the marked passage's relevance in the enclosing context.

You've found a bug in the code which converts Word Documents into posts. It seems that the change of typeface within your source file is triggering this bug. I'll follow up once it's fixed – please let me know if you have any questions

This should now be fixed, thank you for the report – please let me know if you have any questions about this or anything else

Thank you!