Pop-ins still happening even when cache setting is set to ULTRA

Are you on Steam or Microsoft Store version?

Do you have any add-ons in your Community folder? If yes, please remove and retest before posting.

Are you using Developer Mode or made changes in it?

Brief description of the issue:
Even when the terrain cache is set to ULTRA, I can still see taxi signs and other objects popping into view.

Provide Screenshot(s)/video(s) of the issue encountered:

PC specs for those who want to assist (if not entered in your profile)
RTX 2060
32GB 3200 RAM
Ryzen 7 2700x