MacBook Pro M5 Retina display colors off after waking from sleep with calibration

On the 1st of September 2026, less than two weeks ago, I bought myself my first Mac ever. It's a 16 inch Macbook Pro M5. I live in Sweden, I am 55 years old and have worked more or less my entire life as a developer. First on Unix and then on Windows/WSL, until now. As I have photography as a strong hobby, I love editing images, which I always do on calibrated displays, which I assumed would not become an issue on the builtin Retina display of my new Macbook Pro M5.

I own a Datacolor SpyderPro (2024) calibration device and have to the point followed the clear instructions for monitor calibration on my Macbook as provided on this page. I have, as described, turned off True Tone and any other automatic color adjustments on the Mac that could interfere with the Spyder Utility color management and so far so good.

The problem that I am facing is that if I leave the computer for a while so that the Retina display goes to sleep, in about 70% of the cases when I shake the mouse to wakeup the display again, suddenly the colors are completely off. They are either all the way to a very strong green tint, or sometimes so pink and purple that I am unable to read anything from the screen and I am forced to restart the machine. I have already reset my computer from scratch twice on MacOS 26.6.2 and yesterday I got so desperate I also made a try with the current MacOS 27 RC. Nothing has not helped.

I have searched the web a lot and apparently this is a known issue that theoretically can occur as conflicts between the Mac's builtin color management and Datacolor's Sypder Utility. I have tried all the suggested workarounds without getting rid of my problem. Needless to say, after paying around 3300 USD for a machine of this caliber, my initial experience with a Macbook is far from optimal. Not only is this frustrating. I am really disappointed.

Anybody here that has gone through something similar and might have some advice. Is this something that only could be software-related or could it be so that there simply is something wrong with my machine and I should have it sent in under warranty?

Any ideas around this issue would be highly appreciated. Thanks!