Raw memo JSON displayed as narration

[cpcallen]

Every once in a while a narration box appears containing raw memo JSON. In the log it appears as narration, but without a twiddly to inspect it.

[cpcallen]

Reopened because @fais0 was having this happen to him.

Can you provide us with some log output, @fais0?

[cpcallen]

I was able to reproduce this, and got log output. Each new scene is getting prepended with a large fraction of the previous scene—making it invalid JSON.