# COMSub msg - Value Changes Recieved for Invalid Item Handle **URL:** \ **Category:** Ignition\ **Created:** [March 8, 2013, 3:04pm UTC](https://forum.inductiveautomation.com/t/comsub-msg-value-changes-recieved-for-invalid-item-handle/5994 "2013-03-08T15:04:31Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Dravik](https://avatars.discourse-cdn.com/v4/letter/d/e274bd/32.png) [@Dravik](https://forum.inductiveautomation.com/u/Dravik)\ **Post date:** [March 8, 2013, 3:04pm UTC](https://forum.inductiveautomation.com/t/comsub-msg-value-changes-recieved-for-invalid-item-handle/5994/1 "2013-03-08T15:04:31Z")
I’ve started getting a lot of these messages in my console. All coming from one particular scan class. What’s the error indicating? Ignition 7.5.5 - Windows 2003 32bit, Java 7 The ComSub is to a local RsLinx instance. ---
**Author:** ![greg.simpson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/greg.simpson/32/3135_2.png) [@greg.simpson](https://forum.inductiveautomation.com/u/greg.simpson)\ **Post date:** [April 8, 2013, 4:27pm UTC](https://forum.inductiveautomation.com/t/comsub-msg-value-changes-recieved-for-invalid-item-handle/5994/2 "2013-04-08T16:27:41Z")
Sorry for the late reply. Are you still receiving this error message? If so, can you send us the entire stack trace? More information would be very useful. Thanks ---
**Author:** ![Dravik](https://avatars.discourse-cdn.com/v4/letter/d/e274bd/32.png) [@Dravik](https://forum.inductiveautomation.com/u/Dravik)\ **Post date:** [April 8, 2013, 5:16pm UTC](https://forum.inductiveautomation.com/t/comsub-msg-value-changes-recieved-for-invalid-item-handle/5994/3 "2013-04-08T17:16:11Z")
Greg: No, I upgraded to 7.5.6 and rebuilt RsLinx(I was updating anyhow). Turned out that we had a failing 1756-ENBT that was throwing Rslinx into fits. Thanks, Mike