Even though I haven’t edited the block instance, the color of some blocks changed like when I was editing, and I couldn’t edit.
I solved it by inserting blocks or importing the whole file into a new file.
In addition, there are some display bugs such as the color suddenly turns black while editing the material, and the original material is displayed after a while.
My PC is a laptop computer, but the following two GPUs are used. Is this a GPU issue?
intel ® HD Graphics 630
NVIDIA GeForce GTX1050 Ti