I am working on a system that uses a relatively long MACD length (250 days).  When I try to run the system, I get a run-time error stating that "xaverage: Period+Offest out of bounds."

Is there a workaround for this error?  I noticed that TS did graph and calculate the longer MACD when the MACD was added to a chart through the quick charts tools.  So, I would assume that there is a way to use the calculation.  I just can't seem to figure it out.  Any suggestions? 

Simple go into Session panel and increase  bars back to 500. , If you are using 250 for MACD lenght. This will solve your problem. 300 might work depending on what the third MACD smooth is. You need to use at least longest MA+Smooth MA lenght.

Same helped me to plot 90-days EMA.