I have created a dependency using Wait shape in the parent case which forks out two child cases and waits for them to get resolved . I selected scope as Current case. But even after child is resolved parent  case is not moving. From logs i see that system is encountering error while executing step pyContinueAfterwait.  I see below error in logs.

The deferred save failed with the following exception 
com.pega.pegarules.pub.database.BadInputException: Trying to save an invalid page: ** ** ** The property DependentWorkPage_CTC_FW_TESTFW_WORK_R_116.pyTextValue was of mode String List while com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.setValueOverride(Object) was expecting a String or Page mode.  Details: (none) 
Flow WaitForDependecy had an error in step pyContinueAfterWait: The property DependentWorkPage_CTC_FW_TESTFW_WORK_R_116.pyTextValue was of mode String List while com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.setValueOverride(Object) was expecting a String or Page mode.  Details: (none) 
Trying to save an invalid page: page is not valid