Actually you can use Honey Select 1 card for Playhome but not opposite because Playhome is build base on Honey Select. And they aren't compatible with AI Girl, I think because they use different engine. AI Girl and Honey Select 2 seem use same engine so probably you can use Ai Girl card in Honey Select 2 but I'm not play Honey Select 2 yet so I'm not sure.
I mean if you create a card from original Honey Select game (no mod), then you can use that card in original Playhome (their color might look a little different but it work), but you can't use Playhome card in Honey Select. Also if you modded Honey Select and create a card include that mod, that card might not work with Playhome anymore.
To know if a card compatible with a game, then put it in the Userdata/chara folder, open the game and load. If it compatible then you'll see the card arrive in the list, if not then that card will removed (it'll move to the chara_old folder) and not show up. But then if the card show up but can't load, then it mean you missing mods.
There are ways to detect missing mods unfortunately that above my ability. Those red error tell you what file you missing, but you must understand to read it. You can post that card and screenshot the error on discord and ask them for help, maybe they'll teach you the way too (English isn't my mother language, so I'm lazy to ask).
Even if you know what file missing, that not mean you can search it. It's better to ask the author or someone who also use that mod.
But I must remind you run the game as administrator in window 10, because if not, the game might not able to load all files.
