Try shifting the AI4 connections onto the newly installed AI8 ones, and see what happens. If it turns out the 4s then blow, and the changed around 8s don't, it must be something in that area of the wiring giving rise to conditions that the module doesn't like.
I'd also arrange for the failed 8s to go back to the Creators for them to check out the failure(s). This might also point you in the right direction, or discover something more fundamental.
Until trend reach left side of frame, left side time is the Trend start time.
Right side time is changing as it should be.
It is not intended to see short trend.
Let trend run until all Trend window will be occupied by trend.
Then both, left side and right side time will reflect displayed time frame.
I would like to suggest that "Close Project" be added to UniLogic.
An example scenario would be if I've been playing around inside a project but I don't want to save it, I can close the project, select not to save and then open another project, instead of having to exit UniLogic and then re-open it.