This bug happens for me every time, tried twice so far.
How to reproduce this bug
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Go to mineral deposit gate (I used red Knight, on far right), (choose a quiet Heaven 14?), and open up the gate screen.
Now watch as the mineral deposit numbers increase, as players fill it up.
As I was watching, soon after the new gate had been created, the on screen character fell asleep (z z z z).
As I continued watching it idled out and auto logged off (pain ..).
Now, when you log back in, it continues to show the MINERAL DEPOSIT WINDOW, taking up much of the left of the screen.
Its time continues to count down, but the mineral counts are FIXED.
The window CAN'T be closed by clicking on the red X, and remains, even if you goto the shops (Energy exchange etc), enter your Guild hall, or even enter a new mission gate.
Whatever you seem to do, it continues for the entire session.
I did not want to waste 10 ME/CE, so went down the first (free) elevator ONLY, but still the FROZEN old mineral deposit screen on the left.
When you quit (twice, back out of game application entirely), and restart, EVERYTHING is back to normal, i.e. nothing (incorrect) on the left of the screen.