Since upgrading to High Sierra, both Chrome and Safari have been hanging randomly following startup. The rainbow pinwheel would appear every few seconds and I'd have to force quit/re-open those applications. However, the same problem keeps recurring no matter how many times I restart.
The only potential solution that I've come across is from https://setapp.com/how-to/fix-macos-high-sierra-problems:
GETTING THE RAINBOW WHEEL EVERY FEW SECONDS AFTER UPGRADE
Check console.app and if you’re getting errors from sandboxd and hidd (IOKit), your problem is a third party software. It’s probably because it wasn’t supported by the new APFS file system. It tries to repeatedly update causing your Mac laptop to be stuck in an endless loop. To fix this issue, just find and remove this app and everything will be fine.
Following these instructions I found that there was a reoccurring error with hidd, however, I am unable to make sense of the message. Could someone kindly explain what it means?
Otherwise, has anyone had a similar issue with Chrome/Safari? Would greatly appreciate any suggestions on how to fix it. Thanks!