Hi @webzunft — Thank you very much for creating this great plugin!
We had noticed the same behavior on our site (sticky sidebar elements repositioning incorrectly after window resizing) and found the support thread here. We installed the testing version on our development site (with “Improved version” checked) but have now noticed that, after resizing a window, the sticky sidebar element does not abide by the Margin Bottom or Stop Elements on the page.
You can see an example here: https://q1mirror.merchantmaverick.com/reviews/ramp-corporate-card-review/
Username: mmmm
Password: MMMM
If you scroll the window without resizing, the “Ramp” sidebar item works correctly, but if you load, then resize, the Margin Bottom setting (600px) and Stop Element (#footer-top-newsletter) do not work correctly.
Thanks for your help!