Lectora 19: 404 in Preview and Run modes!

carlfink
carlfink Community Member Posts: 1,102 ✭ Legend ✭
In a course of mine, switching to either Preview or Run gives me HTML 404 ... in the development environment! Preview in Browser (F9) does the same, and if I publish the course to ReviewLink, an OnMouseClick "Go to next page" action is null-clicking the button does nothing

Weird.

 

EDIT: it's ignoring Alt-F4. The Close button supplied by Windows did manage to close it.

EDIT FURTHER: closing all Lectora instances and restarting resolved the 404. Still weird.