The imported content won't work on Version 48
You need atleast Rev 52 or above to work with these files
This is the reason pwople are advised not to use 30 day developer trial on cloudshare as it is still on Rev 48
Many things are not supported in Rev 48 thats why everyone was advised to update their HANA DB to Rev 56
Are you using 32 bit HANA Studio then
The most important thing is that Regi.exe file doesn't support 32 bit HANA Studio so you will have to install 64 bit Studio only :
You can download 64 bit HANA Studio and HANA Client Rev 56 from here and try reinstalling them without uninstalling the 32 bit version and see how that works :
https://hanadeveditionsapicl.hana.ondemand.com/hanadevedition/