TX crashes when adding 'Additional Connection'

Hello,

We have a data source that contains several additional/stacked connections in our Business Unit. We now wanted to add the 4th additional connection (so in total 5 data connections), but TimeXtender crashes when clicking on OK after configuring the connection. I think it tries to connect to the data source and get meta data for the tables it needs to select but somehow this fails. Found this in the Event Viewer:

The errors are as follows:

1. .NET = System.OutOfMemoryExceptoiin
2. Application Error =  Faulting application path: C:\Program Files\TimeXtender\TimeXtender 20.10.38.64\timeXtender.exe Faulting module path: C:\Windows\System32\KERNELBASE.dll
3. Application Error = same as 2.)

We are on version 20.10.38, do you have any idea what might be causing this? Why don't we get a proper error message in TX interface?

Connection to the data source through SSMS is working without any issues by the way.

Best regards,
Kaj