Formatting package in editor moves the cursor.

I'm using Toad for Oracle version 12.5.1.1.

I have this strange problem when I format code (using the shortcut but even when using the Menu), the cursor position jumps.

It moves ahead a random number of lines. 

For e.g I was in line 1208 when I formatted, now the cursor moved to line 1521. 

It is really annoying as it breaks your concentration as now you have to move back to the previous place you were working on.

Is there any way to fix this?

Thank You!

Arijit