Could you change the keys?
Whenever I try to Alt-Tab to other window (like Discord or Firefox) while in the middle of a conversation, or guide, It pretty much skips the entirety of the text.
I'm not sure why you decided that the alt key would be ideal for skipping text, or any input at all, but it's not. I have to restart the entire chapter every time this happens, too, because I keep forgetting to save. I also forget that the alt key does that, since it doesn't happen in any other game I play.
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Additionally, when trying to use a game pad, it pretty much has the skip effect turned on constantly, and buttons keep getting pressed even though I don't actually touch the controller. But I imagine you can't actually solve the controller problem, as it likely has more to do with what Steam is doing with the controller data, since if I close Steam the game doesn't recieve input from the controller at all. I'm just mentioning it to let you know it happens.