On your AD member server you have configured some shares. After the installation of the AD takeover app you have to enter credentials when accessing theses shares. No matter what credentials you use access is always denied.
The AD takeover app is designed to perform the steps for the AD takeover. To take over AD the UCS server has to install the Samba4 app to be able to act as a domaincontroller (DC). With the samba-membermode app this is not possible.
Therefore, samba-membermode gets uninstalled during the installation of the AD takeover app.
Once the AD takeover is done the shares will be accessible correctly.
Install the AD takeover app immediately before you perform the takeover and schedule a maintenance windows for it as access to shares will not be possible during takeover.