workspace blinks every time I mouse click image in photoshop

Working in 2020 iMac running mac OS 26.7 Tahoe. Using Photoshop version 27.10.0. 

When working in Photoshop every time I make an adjustment within an Adjustment Layer. Problem seems to be related to the last (or latest) Adjustment Layer I have applied. It seems like when I move any slider within any Adjustment Layer, Photoshop is turning off and turning on interactive preview. Very difficult to explain - never experienced any such problem in previous versions of PS.