Issues with Downloading

Here are issues' solutions about downloading:

https://idecad.atlassian.net/wiki/spaces/IKP/pages/1062175570

https://idecad.atlassian.net/wiki/spaces/IKP/pages/1061619585

https://idecad.atlassian.net/wiki/spaces/IKP/pages/1061586726

https://idecad.atlassian.net/wiki/spaces/IKP/pages/1061586771