when I toggle a couple layers "Solo" to test out something, and I hide a layer also with the Eye icon ("hide video"), when I unhide the Eye layer, it misses that it was set to "Solo"
There is a difference between solo and hide layer,
when you use solo, there is no meaning to use hide layers ( eye icon ) in this case you can use the solo icon to show and hide a certain layer not the show/hide eye icon