Hi @hardin108 and welcome to the Dash community 
It’s helpful to post a complete minimal example that reproduces the issue, rather than just the callback. You can find more info in this post: How to Get your Questions Answered on the Plotly Forum - #12
In the meantime, try adding print(table_style) right before the return statement.
The issue might be that table_style is getting large and has lots of duplicates.