Have actually got a secondary issue now, whereby if I export the sun studies several times, then look at the images, the shadows differ from each test. For example 21 June 9am (Test 1) shadows differ from 21 June 9am (Test 2).
I've done some more tests on this and found something interesting. I think it works as expected if you go 3d projection settings and switch from "custom" sun position, to "date and time", press okay, then go to the same settings and set it to "custom" again.
If it's set to "date and time" it doesn't work at all, and if it is only set to "custom" it only works for the first sun study, then it seems to get stuck. So to unstuck it you have to swap to date and then back to custom again.
This issue persists in Archicad 26.
| AC 25 Int | Win10 | i7-7800X | 32 GB | GeForce RTX 2060 6GB |