I see what happened now, the link for your CCTV mod states A18 in the text but actually links to your A17 Github which is where I downloaded the mod, grabbing your A18 version now.The icons were converted but if you loaded a version before the current one the old icon folder might still be in the your mods folder. delete that and it should be fine.
You should disable texture streaming if your using the cameras as the game calculates occlusion based on the player camera and not my cameras so you will get strange culling. I dont see a way to fix this without code.
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Thanks for the texture streaming tip!