https://community.blueprism.com/t5/Product-Forum/RPC-E-DISCONNECTED-The-object-invoked-has-disconnect-from-its/m-p/45537#M1735 I have already raised this with Blue Prism support who are actively investigating, but wanted to gauge if and how this affects others. I have found that this error has appeared in a few forms/variation of exception detail: The object invoked has disconnected from its clients RPC_E_DISCONNECT The Interface is unknown These exceptions happen when trying to interact with an element in Internet Explorer using HTML mode. They seem completely intermittent and seems to follow no pattern.  We have tried various methods to fix this, with no luck. Does/Has anyone seen this error before? Does anyone know how to fix this error? etc. Tue, 16 Jan 2018 16:36:00 GMT TomBlackburn1 2018-01-16T16:36:00Z https://community.blueprism.com/t5/Product-Forum/RPC-E-DISCONNECTED-The-object-invoked-has-disconnect-from-its/m-p/45537#M1735 I have already raised this with Blue Prism support who are actively investigating, but wanted to gauge if and how this affects others. I have found that this error has appeared in a few forms/variation of exception detail: The object invoked has disconnected from its clients RPC_E_DISCONNECT The Interface is unknown These exceptions happen when trying to interact with an element in Internet Explorer using HTML mode. They seem completely intermittent and seems to follow no pattern.  We have tried various methods to fix this, with no luck. Does/Has anyone seen this error before? Does anyone know how to fix this error? etc. Tue, 16 Jan 2018 16:36:00 GMT https://community.blueprism.com/t5/Product-Forum/RPC-E-DISCONNECTED-The-object-invoked-has-disconnect-from-its/m-p/45537#M1735 TomBlackburn1 2018-01-16T16:36:00Z https://community.blueprism.com/t5/Product-Forum/RPC-E-DISCONNECTED-The-object-invoked-has-disconnect-from-its/m-p/45538#M1736 Have you seen the knowledgebase articles on this topic?  Are you using Blue Prism version 5.0.18 when a change was made to try and stop this issue (not sure if it made any actual difference but it was a change to try and solve that disconnected issue). Tue, 16 Jan 2018 20:27:00 GMT https://community.blueprism.com/t5/Product-Forum/RPC-E-DISCONNECTED-The-object-invoked-has-disconnect-from-its/m-p/45538#M1736 Denis__Dennehy 2018-01-16T20:27:00Z https://community.blueprism.com/t5/Product-Forum/RPC-E-DISCONNECTED-The-object-invoked-has-disconnect-from-its/m-p/45539#M1737 Also.... my working hypothesis on this topic (which could very well be wrong) is that when I have seen it the client has had enormous objects for each application instead of following the best practice ODI training of having lots of small objects for different screens/functions within the same app.  Probably a coincidence - but maybe lots of objects all attaching to different screens somehow reduces the risk of these IE11 disconnections?? Tue, 16 Jan 2018 20:31:00 GMT https://community.blueprism.com/t5/Product-Forum/RPC-E-DISCONNECTED-The-object-invoked-has-disconnect-from-its/m-p/45539#M1737 Denis__Dennehy 2018-01-16T20:31:00Z