Photoshop: no preview of adjustment layers

Hello.

I use the latest version of Photoshop, the imac 27inch MacOS high sierra system.

All adjustment layers, during adjustment, are not displayed on the image. That is, there is no preview.
The effect of the layers is shown only after their adjustment and application.

For example, I’m setting up a gradient map - the image does not change, just don’t move the sliders. But after acceptance - the settings are displayed in the picture.

Tell me, please, can there be a way to get the preview w