strange layout change with SideMenuController and switching between apps

Hi,

I've encountered a weird behavior when using this controller. Consider the following:
1. open the sidemenu (mine is on the right)
2. double tap home button
3. switch to another app
4. double tap the home button again
5. switch back to the app with the sidemenucontroller

When I do this in my app the whole app seems change layout and moves a few pixels to the side. This only happens when switching apps with the sidemenu open.
Any idea what could cause this problem? If screenshots are needed, i'll add some later (and maybe a video to).

Start by reproducing the reported sequence in an iOS app using SideMenuControllerSwift, with the side menu open during app switching. Compare the layout before and after returning to the app, then identify which controller state or layout change causes the pixel shift. Done means the layout remains unchanged after switching apps with the side menu open.

Written by the indexing model from the issue text.