I still think this is some code issue, and I still think that the original code made it possible to start mining from any room with the keywords I mentioned before.
There is a MINE flag in OLC, that you can set on rooms, and with that flag, the room becomes possible to tunnel from.
All the rooms in the big mine have that flag set, and possibly the rooms you mentioned used to have them too.
But neither of the zones you mention have been touched for the last 4 years, so why would the flags suddenly disappear?
The options in the menu look like this:
J) Mine : Num: 0 Level: 1 Tool: Shovel
When a room is not possible to mine from, the first value is set as -1, which is also the default setting.
J) Mine : Num: -1 Level: -1 Tool: None
I remember in the past when rooms that were not supposed to be mined from had that the first value set as 0 instead of -1, (which is an understandable mistake from an inexperienced builder).
It was very irritating, so it had to be fixed, and it was a pain in the ass to go through all those room manually. and guess who had to do the job?
I guess I'm the one that is supposed to add the mine flags to all the entrances that somehow mysteriously disappered too.
And this is the first time I've heard that OLC is quicker than code.
Sure, 2 minutes for two rooms you mentioned, I think that I've already fixed those.
But definitely a lot more more to decide which other rooms should have the flag.
And that still leaves the open questions: Why did the flags, that obviously existed before, suddenly disappear from several rooms in totally unrelated zones that nobody has touched for years?
Forgive me for being a bit testy, I just want to know, so it doesn't happen again after 2 years.