I suggest that, in Model Info → Units, you uncheck Enable length snapping.
I have never used this feature since I can enter exact measurements when drawing or editing.
Also, your model is very small if it is a real building. You should be modelling using real world dimensions.
You can easily scale your model. Simply use the Tape Measure tool to measure a known length. You shall see the length of this edge in the dimension window. Immediately type the real dimension and press the Enter key to validate the input. When asked if you want to resize the model, click yes.
If you really want the building to be that small, for 3D printing, for example, make it a component then make a copy and scale down that copy.
You can use the real sized building for modelling. The smaller copy will automatically be corrected as you go.
Probably a graphics issue which other Mac users have reported. Do a search of the forum on the topic.
Currently it’s a long way from being ready for the slicer. Lots of non-solid objects that need fixing.
How large are you expecting it to be when printed? When I model for 3D printing I do it such that meters in the model equal millimeters in the resulting printed object. This helps to avoid issues with things like missing faces that prevent objects from being identified as solid.
Disabling Length Snapping is not related to the guides showing or not.
As others have reported, guides show just fine for me in your model.
Go into SketchUp’s Settings under the SketchUp menu. Choose the Classic Graphics Engine under Graphics. Restart SketchUp and see if you get different behavior.
That’s my graphics info… I doubt it is the problem, as I dont have the same problem on 2023 version of SketchUp Pro.
The 3D printing model is still in the works. My max print size is about 13" square. I may have to redesign the model, so that I have multiple parts, in case I want it to be a large sculpture. It’s not a commercial job for me----I’m just thinking of making this for my father as he was one of two engineers of that building.
I expect it IS the problem. The graphics engine was changed for SketchUp 2024. It is not the same as in SketchUp 2023 and your old Intel GPU may not fully support the new graphics engine used in SketchUp 2024.
You could at least try my suggestion. It won’t hurt anything and it might work.
Kinda off topic but that’s a building I would instantly recognize from miles away.
Nostalgia hits pure, especially when you’re far away from homeland. Great job mate!