Splunk PostProcess Search Query is too large

I have the following error when I paste my search into the search app.

There was an error requesting the job listing. Status "400". Error message: "error"

When I then reload the page, I get

414 Request-URI Too Large

Is the search too long? The weird thing is, I have had longer searches that did not cause this error.

I have debugged this error even further. I think the reason this is happening is because I am running a Postprocess.

For example, my search looks like :

|loadjob savedsearch="nobody:VP:VP-Initial Search" |search ...