No one else ever reported the program beginning to fail after installing either so fingers crossed that won't happen. if you've not used the Steam version for more than 2 hours you can refund it if you'd rather use the one from our store, just make sure to download and try the free one again to make sure it runs fine on your system now.
I'm only using the windows 10 firewall and virus protection. There's literally nothing on my pc that could have caused the issue, one day its working the next its gone to hell.
I ended up just reformatting my pc with a new version of windows 10, Steam installed Spriter Pro with 2017 versions of the VS c++ redist, even with a new build the app wouldnt launch, I had to uninstall them and install the 2013 versions to get the software to finally work, now on to putting eveything else back onto the pc.
I don't know how difficult it is to create software, I'm a game development student so some day I might find out but this single program has given me more trouble than every other piece of software I've ever encountered, and I got cyberpunk 2077 at launch lol
The program is great when its actually working, but something needs to be done with this 2013 issue.