One strategy running in Strategy Monitor at 1-minute scale is failing with the following message in Action tab.
QUOTE:
Error(3): The given key was not present in the dictionary.
What's causing it and how to fix it?
I restarted WLP but the error persists.
    
 
    
        
    
    
        
    
    
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        Yes, I tried everything described in those posts but none of them worked.
Finally I duplicate entire WLP data folder from working machine, then the problem disappeared.
    
    
        
    
    
        
    
    
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        Which further suggests it had something to do with your data.
    
    
        
    
    
        
    
    
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        Apparently it was due to WLP crash and corrupting the data.
Thank you for your help.
    
    
        
    
    
        
    
    
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        Right, a crash can corrupt the data and/or WLP config files.
    
    
        
    
    
        
    
    
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