Game crashes on DX9

The game runs perfectly well on DX9 except when I try to enter certain areas (Transylvania part in the Tutorial, Firestation in the Kingsmouth, Hotel in Savage Coast, whole London). Then it crashes with the following errors in the CrashLog:

Access Violation (0xC0000005) in C:\Program Files (x86)\Steam\steamapps\common\Secret World Legends\SecretWorldLegends.exe
Access violation writing to memory location 0x00000040.
(Followed by a bunch of Scaleform errors.)
For the full CrashLog follow this link:

The ClientLog, right before the Scaleform errors has this:
[2018-09-12 19:27:02Z #5729] [ID:0] ERROR: Cheetah - address:0xF45A5560 hr:0x8876086C code:D3DERR_INVALIDCALL desc:Invalid call[0x00469673]

For the full ClientLog follow this link:

The game runs perfectly well, albeit a bit laggy on DX11 - no crashes at all there.

Changing between Dx9 and Dx11, as well as changing between Fullscreen and Windowed mode have been known to run with varying degree of success, depending on your machine.

I know that, however the crashing has been consistent on DX9. That’s why I provided both the crash and client logs - to pinpoint the exact cause and find the solution.
Contacted FC Support as well, but haven’t received an answer yet.

Thank you for contacting us at We can work with you to get some more specifics about your PC and this might help us identify a problem. We are a bit backed up due to our offices being closed this weekend from hurricane Florence. Thank you for your patience. We will reply to your email as soon as possible.