@Zexanima,
I was having a similar issue. I was jumping between the 4.2.1 and 4.3 branches.
The important point to note is that the Required_1of2.zip & Required_2of2.zip files are different for each version. So when you switch branches, you have to copy the correct zips on top.
Or, if you’re just using the one branch, make sure you use the zips for that version.