It seems to be possible to get multiple cursors confused when working near a red error message from my compiler that’s been inserted in-line after a build, but only when word-wrap is enabled. If it makes a difference, the error was generated from a WSL build that I kicked off from my Windows copy of Sublime, using sed to munge the paths back to something Sublime for Windows recognises.
Here I have selected the three ‘int’ keywords then pressed end.
Expected result: Cursor at the end of line 1, end of line 2 and end of line 3.
Actual result: Cursor at start of line 1, end of line 1 and start of line 2.
