HELPFUL TIP: Before using the mirror be sure that you sell your entire inventory, including the gear on your heroes {starter rings on warrior, healer, and archer won't sell} and spend all your cash on boosting Tap Power.
The I/E station error seems to have resolved itself after buying a second TMS, now buying is at 1:1 like the description says.
Also, by the descriptions of everything under AVAILABILITY is for trade activities, should not these also contribute to wealth rather than detract from it?
Having a trade relationship creates value and thus wealth. The infrastructure to have that relationship does not intrinsically create wealth. Imagine a road. The road is of no value. It's a trade route upon that road that generates the value and, thus, the revenue.
The button doesn't tell you how many you need, just that you need more. People have asked for a "buy dependencies" feature, which is on the backlog and would probably have helped with this, too.
Chalk me up as another player who can not progress because I do not have 2 types of frontline units. Just like TheoVongG I'm unable to find blueprints to get other structures & units. Critical failure of game design.
I bought the Seeker Missiles weapon; the "homing ability" needs work as the missiles spend half their time flying around the screen missing all the enemies
The money collectors [the first two at least] are in the store under STUFF, but when you try to use them they take up a weapon slot instead of a stuff slot. That seems like a bug...
Count me for another for whom the Unity Player will not launch. Presumably it is something to do with the latest update as I played the game just fine yesterday.
Are the Time Master missions, "Play 1 Day" and "Play 3 Days", supposed to be based on actually having the game window open for 24/72 hours? This sort of achievement/mission is typically having started the game and have returned to playing the next day, 3 days later, etc.
In conjunction with Atalan's comments on earning a gem, I thought I'd add my experience. I just broke 1 Trillion coins earned (first game, no resets, Angel affiliation, 46 trophies, and 37 upgrades). Not idea what the conditions for earning a gem are, or why the income levels vary so wildly for earning first gem.
 "Destination Kepler"){kind=icon}
 "Idle Sword"){kind=icon}
 "Treasure Chamber! Idle Mining Adventure"){kind=icon}
 "This is the Only Level"){kind=icon}
 "First Empire"){kind=icon}
 "Papa's Hot Doggeria"){kind=icon}
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 "Gunball Reloaded"){kind=icon}
 "Gnome Go Home"){kind=icon}
 "Disaster Will Strike 5"){kind=icon}
 "Guess Geography: Countries of Europe"){kind=icon}
 "Papa's Freezeria"){kind=icon}
 "Transport Defender"){kind=icon}
 "Shonen Idle"){kind=icon}
 "Idle Raiders"){kind=icon}
 "Realm Grinder"){kind=icon}
Having a trade relationship creates value and thus wealth. The infrastructure to have that relationship does not intrinsically create wealth. Imagine a road. The road is of no value. It's a trade route upon that road that generates the value and, thus, the revenue.