I have recently acquired the Investor Perk, on PS4, and already I'm having trouble with it. As I am running to shops that I should be able to invest in, using the Wiki to know who can t ake investments, I have found that some of the said NPC will not allow me to invest. So far two won't let me invest; Revyn Sadri in Windhelm and Belethor in Whiterun. I'll keep looking around to see if any more won't let me invest, but has that happened to any one else?
Edit: Falion in Morthal and Moth gro-Bagol in Markarth also don't have the investor's option.