Elise's spiderling interactions after rappel bug

After the new patch and changes to Elise her rappel has started causing her spiderlings to stop moving immediately after she comes down from the rappel for a couple of seconds making the new passive effect on rappel completely worthless. It is not just something that happens every once and awhile but it happens every time. Is this intentional or a bug?

Update: i was able to find a video where this also happened- https://www.youtube.com/watch?v=vkhBIDys-3c