Can't install quickstart version

I copied the Ultimate quickstart.zip to 2 different providers. With the same result:
After unzipping, installation starts (configuration) fine, second page (database) fine, third page (overview, yes to install demo content) fine (no errors so far), but - when I click "Install" -> installation starts, but after some progress the browser jumps pack to page 3 (overview) and leaves the installation incomplete.

Same happens on both webspace providers, where other templates / quickstart versions work well.

Since I want to run Ultimate - any idea?

We are so sorry about that, its our fail.
Please download the Template package again, we have fixed the quickstart bug.

You can fix this bug by yourself:
1.) Download the newest Joomla update package from here
github.com/joomla/joomla-cms/releases/do...e-Update_Package.zip
2.) Copy all files from that zip file to your server and override our quickstart files

Hello I'm trying to install ultimate, I tried the solution with no luck. First I uploaded quickstart.zip then unziped it and then upload the stable update package and installed and can't move from step one??? I forgot to mentione that yesterday I bought the ultimate template but out of my user login profile, to apply for the support..