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Hello, i try to use a create measure with a set defined performance curve. I want to use that set for many equipment in multi zones. so i create performance cure object as @@cooling_performance_curve and the loop over all zone and create new coil use same @@cooling_performance_curve in each zone. When i try it, it seems no problem , i get run and get result. I even get to change vaule in OS instead of measure. but there is strange problem: After one or two days, when i reopen it, it the performance cure was disappear and OSM file get fault when i try to re run it. Must i create one dedicated performance curve object for each new coil cooling object ?

Hello, i try to use a create measure with a set defined performance curve. I want to use that set for many equipment in multi zones. so i create performance cure object as @@cooling_performance_curve and the loop over all zone and create new coil use same @@cooling_performance_curve in each zone. When i try it, it seems no problem , i get run and get result. I even get to change vaule in OS instead of measure. but there is strange problem: After one or two days, when i reopen it, it the performance cure was disappear and OSM file get fault when i try to re run it. Must i create one dedicated performance curve object for each new coil cooling object ?