This is a visualization limit and not the table/column limit - you will see SQL Exceptions in the logs, if the column length restriction was violated.
I don’t know if the dashboard limitation can be increased, but as I mentioned above, if you navigate into this execution instance you will see the “save” and “edit” pipeline options that will give you the entire pipeline.
If you need to increase the visualization limitation, create a ticket with support.
KM
#Integration-Server-and-ESB#webMethods