Citation references are sometimes corrupted

[pragmaware]

We're using the streaming mode to interact with the API. Sometimes we see corrupted citation references in the text. In the following screenshot the [3] reference is corrupted and transferred as [3/>.

When it happens it appears consistently in the delta and repeatedly in the message contents.
In general it's the closing ] that gets replaces with some character. Very often a < or sometimes a %.
Anybody seeing this?