Updating a course with multiple modules

I had a quick question, although the solution may not be as quick, and I may need to reach out to the support team for my company's LMS.  I figured I'd  post here, just in case I may be doing something wrong.

I have this course with 4 modules, that needs updating from time to time (this year happens to be one that needs some updates).  The updates consist of minor verbiage changes and nothing to the actual modules (how they behave, etc.) themselves.  I've uploaded the revised course to our LMS and all of the modules update fine except 1.  I've attempted overwriting twice, with the same results, which is why I thought it may be something with that module.