Just as suggestion !
I would recommend to change the workflow of the installation - the installation (extracting the files) and the download should not be in the same time. Referring also to other forums many erros arise because of missing files. As Alpha and Beta participant I know how to help myself from time to time (delete a part of the files and sorting the files in the folder) but with certain bugs even more experienced ones get ahead.
The download should be in the first (files checksum) and afterwards the installation - would sort out some of the errors or “bugs”.
BR, Arnie !