Custom orange LingQs disappearing

In a Japanese lesson, when I click in a Level 3 or Level 4 learning LingQ the other orange custom LingQs disappear. This doesn’t happen with known words or Level 1 and Level 2 LingQs

The orange LingQs appear again when I return to previous page and then go back to the original page.

Is this a bug? A feature? Or am I doing something wrong?

Strange, I can’t reproduce that. Does it happen in any lesson you open, or with that one specific lesson only?

This happens in any lesson, but I study just with imported lessons (via the LingQ Google Chrome Extension).

I recorded the whole process simulating the problem starting from importing the lesson until the bug:

Note: in the beginning, the video didn’t capture the LingQ extension modal for some reason, so just shows my mouse cursor.

Thanks, we will look into it. Can you please shoot us an email to support(at)lingq.com and send us a link to one of these imported lessons of yours, where you reproduced the issue? Thanks!