Ditto for me. 2013 MacBook Pro with 125GB internal.
Using external hard drives for storage. Purchased two new 2TB Seagate OneTouch - one to transfer from older external drive and one to replace older Time Machine external drive.
The older one is a 2TB Seagate Passport, it hangs in a lot better than the newer OneTouch. Sadly, I am now copying files from the newer OneTouch back to the Passport. Purchased ($$$ and time....) a Western Digital 2TB SSD - maybe I'll return it after reading this thread.
Lastly, Seagate has great customer service, not sure why they are not talking to Apple on this...