Bug in Studio 2015

A very annoying one indeed.

When you want to insert some text into a bigger one, as soon as you type the first character, the mouse index jumps back several characters all by itself and if you are not very careful you just type the following characters to be inserted at the wrong place. Correcting this or being extra-careful to avoid it slows your work down considerably.

Can someone tell me if this bug will be eliminated pretty soon?