A new version is on its way to the play store. As always, it'll be a couple hours before its available for everyone.
20.0.14 / 14 (06/08/2015)
1. NEW: The view mode is save individually for every browse and track view.
2. Fixed: A few stability improvements.
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Before questions come up, here a short explanation how the view mode is saved. Its not saved for every individual "folder", but based on the underlying views (at least if you have MC 20.0.113 or newer)
That means, if you have a view set up with categories for Artists and Albums, then it'll use the same view mode for every artist and every album inside this view.
It is done this way because I do not believe its very useful to change the view mode for one artist, then switch to another one, and having to switch it there again, repeat for 100 artists.
This is similar (although not exactly the same) to how MC saves the view modes in Theater View.
One addition I might consider for the future is allowing different view modes for different levels of a view.
Going back to the earlier example, you have a category view with Artists -> Albums, and you want a different mode for Artists than for Albums. This isn't supported right now, but I might consider it as a addition in the future.