I get an error every time I win a game of Rowdy. I get a message "Loading Error Failed to load: img/pictures/cards4_6.png then Retry box. Basically, the game freezes.
Known bug. Do this - per a user on F95zone:
Copy one of the *.rpgmvp files present in the subdirectories of www\img to the www\img\pictures sub-directory and rename it "cards4_6.rpgmvp" (for instance the "card (4).rpgmvp" file present in the www\img\enemies sub-directory).
Oh, and BTW you can also copy it and rename it to "cards4_3.rpgmvp", "cards4_4.rpgmvp" and "cards4_5.rpgmvp" because these ones are also missing.
BTW, this is happening not because the files are missing and were supposed to be there. It's because there's 2 lines of code missing before and after the messages that say you won those cards, to disable and then re-enable a plugin . Making the substitute image files is a workaround, unless you have your own copy of RPG Maker MV or somebody patches the code for you.