I logged in to forums just now thinking of making a thread with a very similar title.
This update is a huge step backwards. Steppe Bandit swarms, units change formation when you give them a move order, missing icons, bad cursor symbol, by the way, it doesn't seem to realize you have caravans, so you can exceed the limit, but then the swarms of bandits take caravans out (even parties of 150 can face challenges). Many many bugs that cumulatively are killing this beta version. I have to think something went wrong with the upgrade process as these all show up very quickly. Any testing in house should have revealed the new beta isn't in a playable state, so that makes me think the issue is with the download and upgrade to existing versions.
Talewords, you've been doing a great job with the development of this game, but something went very wrong with this update. You might want to consider withdrawing it from being downloadable until you patch it, or if possible, can you set up a download to revert everything back to 1.5.7 please?
I don't know whether I should take a break until the issues are fixed, uninstall and re-install the game (does 1.5.8 work if installed as a fresh install???).