TestComplete ClickItem works on one machine but not another

We currently use 3 machines for our TestComplete automation all running the same version of TestComplete 15.44.11.7, we have a set of regression tests which use the ClickItem function to select a value from a dropdown selector. 

This works correctly on 2 out of the 3 machines but on the third fails with the following error 

'The combo box is invisible. The action cannot be executed'

The failing machine is a Windows 10 machine and the 2 working ones are on windows 10 and Windows 8, so i dont think it is an OS issue. 

The application being tested is an old IE based program with a client wrapper, i was wondering if the issue could be down to needing certain IE plugins installed which i don't remember having to do with the other 2 machines.

I have been through the web setup documents and compared settings but cannot see anything obvious

Any advice or help would be great