When I click on solutions, a single solution is appearing and other solutions are like sub-solutions of this single solution. Something odd is going on here.

That solution is too wide to fit in Cody's editor, and it is automatically truncated into incomplete text (thus is valid only for the first run and becomes invalid upon re-scoring). Since it is very wide, it somehow shifts all other solutions to the right, making them look like sub-solutions.It has been re-scored to invalid and should not give confusion any more.

Ok. Thanks for the explanation.