Unable to update task record, and workflow is stuck on "Rollback to" activity - Support and Troubleshooting

Unable to update task record, and workflow is stuck on "Rollback to" activity Issue unable to update task record workflow is stuck on the "rollback to" activity

java.lang.StackOverflowError at org.mozilla.javascript.ScriptableObject.getProperty(ScriptableObject.java:2315) at org.mozilla.javascript.ScriptableObject.getDefaultValue(ScriptableObject.java:959) at org.mozilla.javascript.ScriptableObject.getDefaultValue(ScriptableObject.java:905) at org.mozilla.javascript.ScriptRuntime.toString(ScriptRuntime.java:795) at org.mozilla.javascript.NativeArray.toStringHelper(NativeArray.java:848) at org.mozilla.javascript.NativeArray.execIdCall(NativeArray.java:270) at org.mozilla.javascript.IdFunctionObject.call(IdFunctionObject.java:102) at org.mozilla.javascript.ScriptRuntime.doCall2(ScriptRuntime.java:2651) at org.mozilla.javascript.ScriptRuntime.doCall(ScriptRuntime.java:2590) at org.mozilla.javascript.ScriptableObject.getDefaultValue(ScriptableObject.java:965) at org.mozilla.javascript.ScriptableObject.getDefaultValue(ScriptableObject.java:905) at org.mozilla.javascript.NativeArray.getDefaultValue(NativeArray.java:526) at org.mozilla.javascript.ScriptRuntime.toBoolean(ScriptRuntime.java:369) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166._c_anonymous_59(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script:1406) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166.call(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script) at org.mozilla.javascript.ScriptRuntime.doCall2(ScriptRuntime.java:2651) at org.mozilla.javascript.ScriptRuntime.doCall(ScriptRuntime.java:2590) at org.mozilla.javascript.optimizer.OptRuntime.callProp0(OptRuntime.java:85) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166._c_anonymous_22(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script:686) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166.call(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script) at org.mozilla.javascript.ScriptRuntime.doCall2(ScriptRuntime.java:2651) at org.mozilla.javascript.ScriptRuntime.doCall(ScriptRuntime.java:2590) at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:42) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166._c_anonymous_22(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script:695) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166.call(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script) at org.mozilla.javascript.ScriptRuntime.doCall2(ScriptRuntime.java:2651) at org.mozilla.javascript.ScriptRuntime.doCall(ScriptRuntime.java:2590) at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:42) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166._c_anonymous_22(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script:695) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166.call(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script) at org.mozilla.javascript.ScriptRuntime.doCall2(ScriptRuntime.java:2651) at org.mozilla.javascript.ScriptRuntime.doCall(ScriptRuntime.java:2590) at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:42) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166._c_anonymous_22(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script:695) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166.call(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script) at org.mozilla.javascript.ScriptRuntime.doCall2(ScriptRuntime.java:2651) at org.mozilla.javascript.ScriptRuntime.doCall(ScriptRuntime.java:2590) at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:42) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166._c_anonymous_22(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script:695) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166.call(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script) at org.mozilla.javascript.ScriptRuntime.doCall2(ScriptRuntime.java:2651) at org.mozilla.javascript.ScriptRuntime.doCall(ScriptRuntime.java:2590) at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:42) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166._c_anonymous_22(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script:695) at org.mozilla.javascript.gen.sys_script_include_3d68dd633b130000dada82c09ccf3d28_script_267166.call(sys_script_include.3d68dd633b130000dada82c09ccf3d28.script) Cause The root cause is the incorrect use of the "Rollback To" activity.

The "Rollback To" activity changes the history records of the activities and resets approvals and tasks that it's rolling back. But to do this it has to build large memory models of how the flow executed. If the activity is not resetting approvals and tasks, there really is no need to use 'Rollback To'. They can just remove the activity and just transition back to the point where they are doing their next thing.

These flows are doing lots of loops and eventually the Rollback To Activity and the WorkflowModelManager can only handle so many iterations before they start to run into memory and stack issues in our javascript engine.

Resolution remove the "rollback to" activity from the workflow if it is not rolling back approvals or tasks for existing affected records, since it's affecting a few records, do either of the following which meets your requirements (test in sub prod): manually update the records using setWorkflow(false) method or remove the existing live workflow and relaunch the new workflow version without the "rollback to" or manually cancel out the records and resubmit