I had an issue with a similar experience earlier this week.
https://talk.macpowerusers.com/t/advice-on-macos-updates/32853/7
tl;dr: Finder issues, mac issues, sluggishness. Culprit - 2 external passport drives (Time Machine External and Carbon Copy External Drives) once disconnected from the Anker USB-A hub everything worked back to normal.
I am on a Mac Mini and not enough ports and trying to avoid this situation again.
Mac Mini Port Usage
- USB-A - to an Anker 10 Port Hub
- USB-A - lightning wire for connecting/charging BT keyboard/mouse
- HDMI - 2nd monitor
- USB-C - 1st monitor
- USB-C - available
Anker Port Usage (all USB-A)
- Time Machine Backup
- Carbon Copy
- Stream Deck
- Scarlett Interface
- SD Card Reader
- Elgato Cam Link 4K
I still need to actually buy a webcam (maybe Elgato) another port will be taken…
Not enough native ports and clearly hubs may cause a problem, what to do?