All bugs › Diplomatic Immunity
Delphine runs back and forth near Mixwater Mill
What happens
Following Delphine back to Riverwood, she may stop at Mixwater Mill and retrace her steps repeatedly, because her travel packages send her to both Riverwood and Whiterun.
PS5-safe fix
Stop following her. She continues on to Whiterun (you may find her at The Bannered Mare) and then returns to the Sleeping Giant Inn. UESP suggests chatting with her briefly, then resting at Braidwood Inn to give her time to travel alone.
Prevention
Don't escort her; meet her in Riverwood instead.
Always make a hard save before trying a fix.
Tried the fix and it's still broken? Tell us so we can update this page.
Still broken on my PS5