I just updated R to 4.1.2, and now whenever I run plot() or ggplot() commands, the plot does not show up in the plot pane but rather in a new window that says Quartz 2. I also receive a warning message as shown.
The warning makes it seem like I need to update R Studio, but when I go to "Help" and "Check for udpates", it states that no update is available. I read this post and tried everything in the answers to that question, including dev.off() and changing the Global Options in Tools, but nothing has worked.