This bug has been fixed in Audacity 2.2.2
It is highly recommended that all users update as soon as possible.
System Requirements and Downloads:
Windows Vista or later. It is highly recommended that the computer is substantially higher specification than the minimums quoted by Microsoft.
OS X 10.6 and later and macOS 10.12 Sierra and 10.13 High Sierra.
We recommend using the latest version of GNU/Linux from your distribution that is compatible with your hardware.
Audacity will run best with at least 1GB RAM and a 2 GHz processor