Thanks nikeymikey. 1 more to go.
@erolz Ill look into the problem with 1-3 and see if I can recreate it.
Progress Grid (finished levels in grey, blue in progress)
1-1, 1-2, 1-3, 1-4
2-1, 2-2, 2-3, 2-4
3-1, 3-2, 3-3, 3-4
4-1, 4-2, 4-3, 4-4
5-1, 5-2, 5-3, 5-4
6-1, 6-2, 6-3, 6-4
7-1, 7-2, 7-3...