There is a bug in the AWS Lightsail user interface when creating a new instance.
When typing the instance name in the "Identify your instance" box, using either the mouse or the keyboard to move the text cursor to any position in the text other than the end will cause the first character you type to insert at the cursor position, but then immediately move the cursor to the end of the text, so any further typing is added at the end of the text.
Also, using the DEL key or Backspace key deletes one character, then moves to the end of the text.
This happens on multiple browsers.
To reproduce: Create a new instance, either from scratch or by using an existing snapshot.
Enter some text in the box.
Use the cursor keys, home/end keys to move the cursor to another position in the text.
Begin typing additional text.
Example:
I type this name in the box
new-instance
I then use either cursor keys, home key, or mouse to move the text cursor to the beginning of the text
I then type my-
Expected result: text box contains my-new-instance
Actual result: text box contains mnew-instance-y
Although this is not a serious bug, it's quite annoying, because if the mistake is not noticed, the instance can't be renamed, so the instance must be deleted and a new one created.
