Errors creating New Task in Data Import Schedule Manager

I am getting several errors when setting up a New Task in the Data Import Schedule Manager. We are on OS version 9.01.17403, and I have installed the latest version of DSM, which is 8.4.0_SV100. I suspect this may be a version compatibility issue, so I am curious if anyone has been able to get this solution to work in a 9.01 application. I have already uninstalled and reinstalled the solution, which didn’t resolve the issues.

Below are the two errors I am seeing:

1. When choosing Global Scenario from the Scenario(s) drop down list, I get an immediate error “Error processing member. The item was not found. Member, 11111111.” The details state: Unable to execute Business Rule ‘DSM_Paramhelper’ where it appears to be trying to call the Global Scenario by OneStream.Client.Api.DashboardsAjaxServiceReference.DashboardsAjaxServiceClient.GetParameterDisplayInfosUsingDashboardNameCompressed(SessionInfo si, LoadDashboardInfo loadDashboardInfo, Boolean isForDashboardUIWithInteractiveComponents, Dictionary`2 custSubstVarsAlreadyResolved).
2. If I pick a specific Scenario, I am getting a different error. It allows me to pick the Scenario and Time, but when save the Task, I get “The input string ‘’ was not in a correct format.”. The error details show it is an issue with the same Business Rule ‘DSM_SolutionHelper’ where Conversion from string “” to type ‘Double’ is not valid. The input string ‘’ was not in a correct format. OneStream.Client.Api.DashboardsAjaxServiceReference.DashboardsAjaxServiceClient.StartExecuteSelectionChangedServerTaskCompressed(SessionInfo si, Boolean isSystemLevel, Guid primaryDashboardID, Guid embeddedDashboardID, Guid componentID, PageInstanceInfo pageInstanceInfo, XFSelectionChangedServerTaskInfo serverTaskInfo)

Any advice on how to correct these issues would be greatly appreciated.