This isn't a bug, but maybe others can avoid the hour of frustration I went through.
I had used the function GetWorldWindowPosition in a plugin using VBscript and it has worked fine without the caps - getworldwindowposition. While writing another plugin, it would give me some numbers which never changed. And now the function in the other plugin which had worked has stopped working. WTF! Capitalizing the function name fixed the problem.
MUSHclient 4.43
I had used the function GetWorldWindowPosition in a plugin using VBscript and it has worked fine without the caps - getworldwindowposition. While writing another plugin, it would give me some numbers which never changed. And now the function in the other plugin which had worked has stopped working. WTF! Capitalizing the function name fixed the problem.
MUSHclient 4.43