The update you installed, you're certain the downloaded file is Infiltration285-patch1-1-umod.zip? (or Infiltration285-patch1-1-man.zip)
you may want to try redownloading the 2.85.3 patch to make absolutely certain and install it. The version number in 2.85.3 should appear within the rectangle area of the menu and it will say "Infiltration 2.85.3" (though hard to see- that'll be fixed in the future)
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