So, I think I have narrowed down the problem in the 2021.1 release. The issue only seems to come up in 2.0 or 2.1 Restlet scripts (could not reproduce the issue in a scheduled or map/reduce script) that runs a search. I am able to load or create a search just fine, but as soon as I call

.run()

on the search, the script bombs with the error: java.lang.NoClassDefFoundError: Could not initialize class com.netledger.core.rdc.RdcUtilImpl