At 05:22:13 Tue 21st November 2023 PST most, but not all, Dolphin IPC receivers on h1sush7 recorded a single receive error.
Attachment shows timemachine capture of h1susfc1 and h1sussqzin IPC receive MEDMs.
I think this is the first non-forced spontaneous IPC receive error we have seen during O4, so it warrents a FRS ticket: