Ah... I see... you actually did see "-1". Excellent.
First, there is an eA configuration which disguise the real WOE damage to be shown as -1.
// When set to yes, the damage field in packets sent from woe maps will be set
// to -1, making it impossible for GMs, Bots and Hexed clients to know the
// actual damage caused by attacks. (Note 1)
hide_woe_damage:
yesThis configuration makes it impossible (so they say...) for anyone including the GMs to see the real WOE damage. According to eA, if the setting of hide_woe_damage is turned off, you will either need to be a GM or have a correctly hex client to be able to see the real WOE damage. Hex client is beyond my knowledge- no further comments.
http://eathena.deltaanime.net/board/lofiversion/index.php/t215367.html Is it a "bug"? Well, on iRO, you can actually use Monster Property on Guardian Stones and it will show the remainder HP and other information. So, there's a kind of an inconsistency with iRO. Having said that, I am uncertain if eA is willing to work around the configuration to accommodate this due to security reasons.
Extracted from Ragnarokrevolution:Dunno where to put this so im going here. Ok so we decided to woe on rachel castles, but what's this? Only do one dmg on stones. and no skills allowed? Well that's not right.. We finally have the stone to low hp and its restored without even being broken? wtf? And you cant use skills on guardians either? Ok, this needs to be fixed asap, I remember woe months ago was like this too and you said you were closing woe to fix these bugs, but I get the feeling you didn't fix them at all. If they weren't bugged like that we would've gotten a castle.
Well I just hope it's fixed. It really doesn't help that we were attacking one crystal for the first 30 minutes of woe and then it got resotred without us even killing it...
Well, you can actually use skills on the Guardian Stones unlike emperiums, you just proved it with Monster Property skill. If you were only melee attacking the emperium (no skill), that could possibly explain the 30 minutes time spent on trying to break a Guardian Stone. However, if you were using SG lvl10 and other skill attacks, it should not take you 30 minutes to break a Guardian Stone, and this may warrant a further investigation on the part of your GM.