Some types of inline rolls cannot be sent via sendChat, although they normally work. This may be connected to the use of roll tags, and seems to show up more when no 'R' type results are present. To reproduce, run sendChat('name', '[[10 + 5[str]]]') You get the following error message: Could not determine result type of: [{"type":"M","expr":"10+2"},{"type":"L","text":"str"}] Entering [[10 + 5[str]]] in chat gives the expected result instead. Strangely enough, [[d20 + 5[str]]] works fine. When omitting the '[str]', it also works.