I am having a problem with messages being injected into TCP responses received in the ESP32 AT firmware v1.2

Usually this is the word "delete" along with some whitespace, but not always.

Here is a truncated example:
AT+CIPSEND=26

OK

Recv 26 bytes
id:0,Len:26,dp:0x3ffcba44

SEND OK

+IPD,1359 ...