When the eIM initiates a profile download via the profileDownloadTriggerRequest, it includes an eimTransactionId to identify sent by the IPAd (testsuite) in the initiateAuthenticationRequestEsipa response. The eimTransactionId (even though it is optional) is essential for the eIM to recognize the response from the eIM correctly.
(SGP.32 V.1.0.1 lacked the eimTransactionId, which meant that the eIM had to rely on other identifiers such as the TCP connection itself. The problem is now fixed with SGP.32 V.1.2)