EDIT: Looks like you don't have the mame executable in the same folder as the roms folder.
MAME assumes the roms folder is located in the same folder it is unless you change it in mame.ini
MAMEUI and MAME can live in the same folder together without issues.
original post:
while in Mala, highlight 1942 in your gamelist, right click, and select "show game metadata"
Check the path there. All the data is stored in the gamelist so whenever you make changes, you have to refresh the gamelist.
If that doesn't lead to a solution, post a pick of the metadata.
odd that it says "tried in 1942 1942" instead of just "tried in 1942"