Well i leveled up and i bought 1 Stable Rune and when i was Shaman, it said i have 4 of it and i could use 4 even if i only bought 1 Stable Rune?

What type of map? Single or double shaman?

I think this is how it works, if you turn back on normal/hard mode it'll show that you have one, and on Divine mode it'll show 4. I don't think it's a bug.

All shaman maps, i shammed atleast 2 times (vanilla)
Btw, i relogged and it showed i have 1 stable rune again.
And now i have 4..wow...

thanks people , bye! <3

I've noticed this bug in divine mode only. Theres more to this bug though (or another bug affects this one); there are completely random maps that allow shamans to use 3 springs instead of one while still in divine mode. In this case the skill that allows the shaman to give mice cheese will also have unlimited uses instead of the usual 5 uses while in divine. When this occurs, instead of four stable runes, the shaman will have 1. This makes investing more than one skill point in the stable rune skill useless.

The maps that ignore certain 'divine shaman mechanics'(?) are completely random and it wont always occur on the same map.