I'm trying to insert some Base64 encoded data into an AQ that I've setup. Sometimes the I get the unreasonable conversion error - ORA-01460 error and have no clue why I'd be getting it. I'm doing all the proper AQ method enqueuing calls, but still seem to get this error.

This is a recent error, as I've been using AQ for 2 years but just started to see this error with 4.4+kb payloads.