Unable to save schemas

Ah, wait, sorry, one of my previous schemas has saved, but the other one still won't save.

I'll note their structure here, in case it's useful:

The one that DOES NOT save (all field types are regex):

1. S\d{12}
2. (BLW|PKF|WTS|EXS|GDS|A|D)
3. (BLW|PKF|WTS|EXS|GDS|A|D)
4. (BLW|PKF|WTS|EXS|GDS|A|D)
5. (HNM|EXS)
6. (85|86|87|88|89|90|91|92|93|94|95|96|97|98|99|100|115|N)
7. (85|86|87|88|89|90|91|92|93|94|95|96|97|98|99|100|115|N)
8. (85|86|87|88|89|90|91|92|93|94|95|96|97|98|99|100|115|N)

The one that DOES save:

1. S\d{12}
   2 to 7 (AM|A|B|C|D|E|F|G|U|X|W)

I wonder if fields 6, 7 and 8 in the schema have a regex that is too long, or something.