We ran into this error using the WEB RECORDER to get around it you have to shorten the name of the object causing the problem. To do this Click the (SHOW CAPTURED OBJECTS). Highlight the line with the long name and under OBJECT PROPERTIES you have a edit box to shorten the name. Hope this helps
We have already fixed this bug in Katalon Studio version 7.0.0. Please check out the release note and upgrade to enjoy Katalon Studio with enhanced performance.