API call fails to complete in child pipeline

Hello,

I am trying to run a parent-child pipeline using the pipeline execute snap. Lately, I have been getting the error mentioned below in one of the child pipeline instances. The other child pipeline instances complete successfully. This specific child pipeline gets stuck on a SOAP API call snap and fails to execute after a certain point.
I have set the pool_size to 2 and I have attached the pipeline screenshot below for reference. Any help with this would be great,

Thanks,
Amol.

Image:

Error:
Error Fingerprint[0] = efp:org.apache.http.nio.reactor.ssl.ILTIC8kB

Create Ship_To Account Site using MergeAccount API Call[59096c3159ee132472e56af6_e12abffe-658a-4436-b079-ab3d4a8a83bc – e7e1f878-ebe6-4d5d-98d2-05d4aad340ea]
**com.snaplogic.cc.snap.common.ThreadDetails: prio=4 Id=1937409 BLOCKED on org.apache.http.nio.reactor.ssl.SSLIOSession@7bdd8c3a owned by "I/O dispatcher 2755" Id=1937424** at org.apache.http.nio.reactor.ssl.SSLIOSession.setEvent(SSLIOSession.java:530) - blocked on org.apache.http.nio.reactor.ssl.SSLIOSession@7bdd8c3a at org.apache.http.impl.nio.NHttpConnectionBase.requestInput(NHttpConnectionBase.java:230) at org.apache.cxf.transport.http.asyncclient.SharedInputBuffer.waitForData(SharedInputBuffer.java:190) at org.apache.cxf.transport.http.asyncclient.SharedInputBuffer.read(SharedInputBuffer.java:266) at org.apache.cxf.transport.http.asyncclient.AsyncHTTPConduit$AsyncWrappedOutputStream$6.read(AsyncHTTPConduit.java:613) at com.ctc.wstx.io.BaseReader.readBytes(BaseReader.java:155) at com.ctc.wstx.io.UTF8Reader.loadMore(UTF8Reader.java:368) at com.ctc.wstx.io.UTF8Reader.read(UTF8Reader.java:111) ... at org.apache.http.nio.reactor.ssl.SSLIOSession.setEvent(SSLIOSession.java:530) at org.apache.http.impl.nio.NHttpConnectionBase.requestInput(NHttpConnectionBase.java:230) at org.apache.cxf.transport.http.asyncclient.SharedInputBuffer.waitForData(SharedInputBuffer.java:190) at org.apache.cxf.transport.http.asyncclient.SharedInputBuffer.read(SharedInputBuffer.java:266) at org.apache.cxf.transport.http.asyncclient.AsyncHTTPConduit$AsyncWrappedOutputStream$6.read(AsyncHTTPConduit.java:613) at com.ctc.wstx.io.BaseReader.readBytes(BaseReader.java:155) at com.ctc.wstx.io.UTF8Reader.loadMore(UTF8Reader.java:368) at com.ctc.wstx.io.UTF8Reader.read(UTF8Reader.java:111) at com.ctc.wstx.io.MergedReader.read(MergedReader.java:105) at com.ctc.wstx.io.ReaderSource.readInto(ReaderSource.java:87) at com.ctc.wstx.io.BranchingReaderSource.readInto(BranchingReaderSource.java:57) at com.ctc.wstx.sr.StreamScanner.loadMore(StreamScanner.java:991) at com.ctc.wstx.sr.BasicStreamReader.readTextSecondary(BasicStreamReader.java:4647) at com.ctc.wstx.sr.BasicStreamReader.finishToken(BasicStreamReader.java:3721) at com.ctc.wstx.sr.BasicStreamReader.safeFinishToken(BasicStreamReader.java:3675) at com.ctc.wstx.sr.BasicStreamReader.getText(BasicStreamReader.java:858) at org.apache.cxf.staxutils.StaxUtils.copy(StaxUtils.java:748) at org.apache.cxf.binding.soap.saaj.SAAJInInterceptor.handleMessage(SAAJInInterceptor.java:237) at org.apache.cxf.binding.soap.saaj.SAAJInInterceptor.handleMessage(SAAJInInterceptor.java:81) at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272) at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:849) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1642) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1520) at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1317) at org.apache.cxf.transport.http.asyncclient.AsyncHTTPConduit$AsyncWrappedOutputStream.close(AsyncHTTPConduit.java:385) at org.apache.cxf.io.CacheAndWriteOutputStream.postClose(CacheAndWriteOutputStream.java:56) at org.apache.cxf.io.CachedOutputStream.close(CachedOutputStream.java:223) at org.apache.cxf.io.CacheAndWriteOutputStream.postClose(CacheAndWriteOutputStream.java:56) at org.apache.cxf.io.CachedOutputStream.close(CachedOutputStream.java:223) at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56) at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:632) at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62) at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272) at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:572) at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:481) at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:382) at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:335) at org.apache.cxf.endpoint.ClientImpl.invokeWrapped(ClientImpl.java:370) at org.apache.cxf.jaxws.DispatchImpl.invoke(DispatchImpl.java:327) at org.apache.cxf.jaxws.DispatchImpl.invoke(DispatchImpl.java:246) at com.snaplogic.snap.api.soap.InvocationServiceImpl.execCall(InvocationServiceImpl.java:389) at com.snaplogic.snap.api.soap.InvocationServiceImpl.call(InvocationServiceImpl.java:323) at com.snaplogic.snap.api.soap.SoapExecutor.soapExecuteAndProcessResponse(SoapExecutor.java:348) at com.snaplogic.snap.api.soap.SoapExecutor.lambda$executeCXF$0(SoapExecutor.java:227) at com.snaplogic.snap.api.soap.SoapExecutor$Lambda$739/0x0000000801a0d040.call(Unknown Source) at com.github.rholder.retry.AttemptTimeLimiters$NoAttemptTimeLimit.call(AttemptTimeLimiters.java:78) at com.github.rholder.retry.Retryer.call(Retryer.java:160) at com.snaplogic.snap.api.soap.SoapExecutor.executeCXF(SoapExecutor.java:261) at com.snaplogic.snap.api.soap.SoapExecutor.execute(SoapExecutor.java:206) at com.snaplogic.snaps.soap.SoapExecute.invokeSoapRequest(SoapExecute.java:917) at com.snaplogic.snaps.soap.SoapExecute.process(SoapExecute.java:818) at com.snaplogic.snap.api.ExecutionUtil.process(ExecutionUtil.java:106) at com.snaplogic.snap.api.ExecutionUtil.executeForDocument(ExecutionUtil.java:118) at com.snaplogic.snap.api.ExecutionUtil.execute(ExecutionUtil.java:81) at com.snaplogic.snap.api.SimpleSnap.execute(SimpleSnap.java:70) at com.snaplogic.cc.snap.common.SnapRunnableImpl.executeSnap(SnapRunnableImpl.java:768) at com.snaplogic.cc.snap.common.SnapRunnableImpl.execute(SnapRunnableImpl.java:550) at com.snaplogic.cc.snap.common.SnapRunnableImpl.doRun(SnapRunnableImpl.java:834) at com.snaplogic.cc.snap.common.SnapRunnableImpl.call(SnapRunnableImpl.java:400) at com.snaplogic.cc.snap.common.SnapRunnableImpl.call(SnapRunnableImpl.java:116) at java.base@11.0.7/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base@11.0.7/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base@11.0.7/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base@11.0.7/java.lang.Thread.run(Thread.java:834)