Hi Turnip,
Finally I could try on "my" G70 your problem but I think that here all works fine...
...maybe if you can describe step by step your problem I can try to reproduce it here...

but I understand that One Touch are not linked to a style but to its position on Style bank...
i.e. if I select a style using the style bank and then I select the same style using the Finder, the One touch will not work

Further, if I put the Style A in position 1, write the OT for position 1, then I move the style A in position 4, I will not have the OT written for position 1...but the OT already existing in position 4

This is what I see, maybe it is the explanation for your problem

Hope it works
Regard,
Rival