I am currently working with Ranorex version -9.3.4 and facing this issue.
I have recently moved my agent to a New Windows 10 agent , earlier I was using Windows 7 VM as agent.
After doing this the test which were green have turned red

The windows 10 agent is unable to tract certian elements and i get this message - No element found for path
Locally I am using a Windows 10 machine and there the test runs green , also on Winows 7 agent machine but the same
test fails on Windows 10 machine.
The Browser setting (zoom etc )and screen setting is also same. The tests are running on IE.