After Effects error: Unable to call "openFast" because of parameter \2. ^3

[anthonygelatka]

There’s a post on it already here

After Effects Render OpenFast Error?

We’ve double checked the pathing a 100 times, but still keep getting this error: aerender Error: After Effects error: Unable to call openFast because of parameter 1. Path is not valid. Path: S:\xxxxxxxxxx\3_ANIMATION\ARTIST\xxxx\AE\xxxx_v47_TA.aep at Deadline.Plugins.PluginWrapper.RenderTasks(String taskId, Int32 startFrame, Int32 endFrame, String& outMessage, AbortLevel& abortLevel) Read on an Adobe site that someone a couple years ago reached out to Thinkbox and told them to use .aepx suffi…

not sure if any use regarding the aepx?