Don, I found one strange case where the RTE throws away data (using table-plugin-4.0.0)

Fail case

• Edit the last element in table with RTE. Everything after the style is lost.

  {table-plus:columnAttributes=, style="background:yellow;"}
  || A || B ||
  | a | b |
  {table-plus}
  

Works

• Note no blank before the style parameter works ok

  {table-plus:columnAttributes=,style="background:yellow;"}
  || A || B ||
  | a | b |
  {table-plus}