I discovered the following. Game is installed on 2013 MacBook Pro, running Big Sur 11.7.10. Pixilated line is visible at all screen resolutions. However, I downloaded game to my 2024 iMac running Sonoma, and no line!!! Looks like the old clunker is done.
hey, see above
It’s happening to me as well. This happens on all screen resolutions.
screen shot from above. I call it the golden rectangle.
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Hello @_Mark_C, welcome to the forums! Could you please confirm your computer’s GPU? It looks like you were on a device with an Intel GPU when you did that activity. This may be a new (or underreported) issue with the same symptom that occurs on Intel-powered devices, unless I’m mistaken about the graphics card on your PC.
G’day
I can confirm it’s an Intel 5500 GPU. After reading this thread I went to Intel and got latest rivers. Made no difference. In windowed or full screen at different resolutions Instill get the golden rectangle. It’s been happening for about 8 weeks that I’m aware of.
Yep I have the same issue - I have a Mac Pro 2011 - this issue only appeared 2 days ago up till then no issues at all - everything works but the lines very distracting tbh
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Same here: macbook pro retina 15 inch mid 2015 (with videocard intel iris pro 1536MB) I’m having the issue since a couple of weeks. Never had this problem before and it’s very distracting and annoying 
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I have exactly the same issue as Paul and Bert. I also have a MacBook Pro 2015, same spec as Bert. The issue seemed to start with the introduction of v1.58. And yes, it is extremely distracting
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Hello all,
Although visually similar to a previously-fixed issue, this appears to be a new issue that has so far only been reported on Intel-based machines. I’ve flagged this for additional investigation at Zwift HQ.
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Hi Everyone. This is Juan a Zwift colleague. I appreciate you taking the time to reported this issue with the graphics in-game. Here is the last updates to member who has experienced the same issue.
Please, stay tuned on that thread.
One further observation from this evening. The band does not appear on dirt track / gravel surfaces, but it also disappears at junctions, where routes merge.
Intel HD Graphics 4000:
Chipset Model: Intel HD Graphics 4000
Type: GPU
Bus: Built-In
VRAM (Dynamic, Max): 1536 MB
Vendor: Intel
Device ID: 0x0166
Revision ID: 0x0009
Metal: Supported, feature set macOS GPUFamily1 v4
Displays:
Color LCD:
Display Type: LCD
Resolution: 1280 x 800
UI Looks like: 1280 x 800
Framebuffer Depth: 24-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Automatically Adjust Brightness: No
Connection Type: Internal
Same issue on MacMini with latest Monterey, i7 CPU, 16GB memory and Intel Iris 1,5GB graphics.
Started with a reddish band in the distance, and has become a more visible yellowish band up close in one of the last few releases (1.58 or earlier)
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Any news on a fix?
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Rouvy 14 days free trial….
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■■■■■■■ weird one day everything good and the other all macbook from 2011 to 2015 are trashed!
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happening with me 2014 macbook pro Big Sur the scintilating square always keeps the same heading but disappears on some junction textures
Have this issue too on a 2014 Macbook Pro - will send details and a screenshot