Thanks for the report. I couldn't reproduce the bug described in
http://www.planetmule.com/forum?topic=89.0 so I left it as unresolved. Now thinking about it, it seems plausible that a metoerite striking the same plot twice can result in this problem. We will adjust this in future versions.
I don't know about any case with a meteor strike in exactly the same plot, if it can only fall into non-river plots with no crystite or crystite1 or 2, I supposse that it will not fall into
mountains nor a crystite4 plot. But I guess you can easily check the script in case it might happen. (Because the chances of a meteor hitting the same plot are too low to check in games.

)
The point is, when more than a meteor strike happens in the same game, no matter which plot, no matter the players or AI who has the plot (or unowned), no matter the location, only the first time the meteor itself appears. Any further round, the new plot having the meteor impact is changed into a crystite4 plot with the crater graphic as soon as the event happens, but the meteor is not seen like in the previous one.
* EDITED to explain the last part slightly better.
** EDITED to correct the mountains info. It can hit a mountain plot and destroy them.