There is a small issue with the Testnode log for Selenium Testcases in the TestMaker 55RC3.

The TestMaker adds duplicate entries for a logged step into the Output panel. The longer the test runs the more duplicate entries exist for the log entries.
The error disappears if the TestMaker is restarted.

Instructions to apply this patch:

1. Download the library seleniumhtmlunit.zip from link: downloads.pushtotest.com/201007/seleniumhtmlunit.zip

2. Change the file extension from .zip to .jar

3. Replace/update seleniumhtmlunit.jar in the following four places of your TestMaker installation path

i. <TM HOME>/TestNetwork/TestNode/htmlunit/2.8.1705
ii. <TM HOME>/TestNetwork/TestNode/htmlunit/2.7
iii. <TM HOME>/htmlunit/2.8.1705
iv. <TM HOME>/htmlunit/2.7

Then restart your TestMaker application and try to run your test scenarios.

Please feel free to contact me, If you are still encountering any issue or if you need any help to apply this patch.