Autohotspotting does not work - cannot find liblept172.dll
Symptom
When selecting the autohotspotting button on an illustration, an unhandled exception will appear with the following exception text:
************** Exception Text **************
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
---> System.DllNotFoundException: Failed to find library "liblept172.dll" for platform x64.
Root cause
The Microsoft Visual C++ 2015 Redistributable library is not installed on the machine that runs the Signifikant Manager. This is a library that is installed on most PCs and servers which explains why this issue only occurs on a few machines.
Workaround for version 5.0.x and before
Close Signifikant Manager
Download and install the library from Microsofts support site: https://www.microsoft.com/en-us/download/details.aspx?id=52685
Restart Signifikant Manager
Solution from version 5.1
Starting from version 5.1 the installation program will include the library and install it if needed.