Indicators in chart window disappear when changing periodicity, while running my custom indicator below

 

I created my first custom indicator. I took an existing indicator and added some moving averages to it. So not extremely complex. My indicator displays in a subwindow below the chart. If my indicator is displayed and I draw fibo retracements, trendlines, etc. on the chart window, then switch timeframes, all of the indicators I drew in the chart window disappear. If I turn my custom indicator off, they display in all timeframes.


What gives?

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