We are doing some work in the background to correct some of these frames, currently targeted for a few months from now for the whole project to finish. It is unlikely we'll correct the reminder text piece unless new Fuse cards are made
We will not have native Mac support due to how the initial architecture of the game was built in Windows. There are workarounds available that you can search out on the Internet - we don't provide direct support for Mac use.
Thank you for the ideas - we understand that for a growing amount of players, MTGO is basically the Vintage Cube machine. While we get that and have grown our Vintage Cube offerings, we also need to prioritize the new cards and our Constructed formats at times too.
We have some other ideas for...
We talked it over and we will indeed go back to the original (2020) form of this where you are opening 1 pack from 18 different copies of the Cube - so it'll be possible to get multiple Lotuses, Mox, or anything else
This example is not a bug - only instants or sorceries can't be turned face-up naturally. Other effects such as Karlov Watchdog may cause the card to be unable to be turned face-up.
Try searching for and deleting this folder - swapping in your computer's local username for [USERNAME]: C:\Users\[USERNAME]\AppData\Local\Wizards of the Coast\Magic Online\Images\Cache
Then restart MTGO - this should trigger it to rebuild.
Incorrect - additional costs can be paid. From Gatherer:
If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs, such as awaken costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs...
This one kills me - it's one of my faves in paper - but Lethal Scheme's choose-a-creature-to-connive in the middle of resolving the spell is currently beyond MTGO's abilities.