Big disk and install issue

[Koxx3]

Hello,
I am trying to install the hardened OS generated from Centos 7.4 on a new physical server with 15Tb (in a single RAID disk/volume).
And I get this error (see ) whatever the partition pourcentage I use - all to 1% give me the same-
Picture

The same generated ISO works fine in smaller VMs.

Does anyone have an idea how to fix this ?

I looked at the menu.py, but I don't see any issue:
f.write('clearpart --all --drives='+str(self.data["INSTALL_DRIVES"])+'\n')
if self.encrypt_disk.get_active() == True:
f.write('part pv.01 --grow --size=200 --encrypted --cipher='aes-xts-plain64' --passphrase='+self.quoted_password+'\n')
else:
f.write('part pv.01 --grow --size=200\n')
f.write('part /boot --fstype=xfs --size=1024\n')
f.write('volgroup vg1 --pesize=4096 pv.01\n')
if os.path.isdir('/sys/firmware/efi'):
f.write('part /boot/efi --fstype=efi --size=200\n')
f.write('logvol / --fstype=xfs --name=lv_root --vgname=vg1 --percent='+str(self.root_partition.get_value_as_int())+'\n')
f.write('logvol /home --fstype=xfs --name=lv_home --vgname=vg1 --percent='+str(self.home_partition.get_value_as_int())+'\n')
f.write('logvol /tmp --fstype=xfs --name=lv_tmp --vgname=vg1 --percent='+str(self.tmp_partition.get_value_as_int())+'\n')