[Bug] Keystroke is rendered incorrectly

[anselmwang]

Describe the bug My keystroke is "Space n n", but the rendered result miss the last "n"

To Reproduce Project.stg.txt Steps to reproduce the behavior:

1. Download above "Project.stg.txt", rename it to "Project.stg". The file is created by 2.3.6.
2. Open the file with ScreenToGif 2.3.6.
3. Click "KeyStroke" button, click "apply"
4. The rendered result is

Expected behavior Expect to see "Space n n" in gif.

Screenshots

Desktop (please complete the following information):

• OS: Windows 10
• Version: 2.3.6

Additional context Add any other context about the problem here.