I submitted an assignment with recording. When I tried to re-submit to add more it didn't work and said to try more times or contact support team. I tried more times but it still didn't work so can you help me?

I submitted an assignment with recording. When I tried to re-submit to add more it didn't work and said to try more times or contact support team. I tried more times but it still didn't work so can you help me?
Hi Gabriel,
Sorry to hear you're experiencing this behavior.
Media files can be a maximum of 512MB. Please make sure your file meets this requirement.
If you are still experiencing this issue, please let us know.
Best,
Yimei Shao
Knowledge Management Specialist
Schoology | A PowerSchool Unified Classroom Product