IP Addressing Basics - Duplicate Subnet on east and west side of router

IP Addressing Basics - Duplicate Subnet on east and west side of router.

While doing this lab i find that there is a Layer-3 topological discrepancy where the east segment of the router (linux1, 2, 3) are on subnet 192.168.10.0/24. However, the west segment of the router has linux4 with 192.168.10.101/24 which is an overlap of the eastern segment. Linux5 is not addressed.

The lab asks to find the subnets on east and west, but I find it impossible for me to do with the lab conditions.

I tried restarting the challenge project for the lab, and restarting the gns3 instance as well, but no luck.

is this a trick lab?
Are we supposed to guess the networks and correct the interfaces on the west segment?
Is this a glitch with the lab?
Any pointers would be greatly appreciated!

There is no trick. Some hosts are misconfigured intentionally and the questions in the Challenge ask if you can spot the issues.