For three days now and not found 1, also do they show on the map like the base game shd caches.
Check in your apparel caches, you should get and urban jungle every 4 or 5 shd levels
It's supposed to be every 4 SHD levels.
There IS a bug with the apparel event currently. Might reboot/restart your system not just the game but the system itself BEFORE you start collecting keys no matter how many levels you level up. Same thing happened to me. There is a thread in the PS4 support section.