seems that tads3 (frobtads 3.1.3; Linux) has issues with multiple sources, this is an example:
e3rooms.t(38): error: too many '+' signs in object definition - location not defined
the experiment 3 (e3) has three files: one, the main, e3rooms contains the rooms and fixed items, and e3items, the mobile items. all are smaller, and I checked the correct syntax multiple times.
Someone known about this issue, and a solution and/or workaround ?