Photoshop CC 20.0.2: All text layers suddenly disappeared

Hi, When working on a heavy document (stuffed with hundreds of layers and groups) at one point I've noticed that every single text layer has gone invisible. I tried to select a text layer with no results - "No pixels were selected". I found a way how to bring them back by double-clicking through all text layers one by one. Double click automatically selects the text within the box and somehow the text gets recovered. I wish it would never happen in the first place, but I'm happy I was able to recover my work (it took quite a time though). I'm attaching a screen capture video displaying the issue. Has anyone else experienced something like this? What caused all the texts to disappear?