Having a major issue with Sketchup causing my iMac to lock up. From the moment I activate SU, the Activity Monitor shows the Memory pressure heading towards the red. Swap memory starts climbing as well, and within a few moments the spinning rainbow wheel kicks in and it just gets worse and worse for a minute until everything locks up. Even trying to close SU at that point can take more than 5 minutes.
I tried restarting the computer and running Clean My Mac, which gets everything else working again, but makes no difference to SU.
The problem occurs even when there are no other apps running, and with only a new blank model open.
Set up as follows:
iMac Retina 4K 21.5 (late 2015), 3.1 GHz Intel Core i5, 8GB 1867 MHz DDR3, Intel Iris Pro Graphics 6200 1536 MB, OS High Sierra 10.13.4, Sketchup Pro 2018 18.0.16976.
I am also running a BenQ GW2270 Monitor off a Thunderbolt port, and a 3D connexion mouse.
I am currently in a state when I simply cannot open SU without causing this issue.
Sketchup used to run like a dream on this system, but now I can’t run it at all.
Regards, Andrew Vivian