I’m getting over 892 “ERR: Transient text cannot be serialized” errors in my log file when I startup. After a few days of troubleshooting I found the following causes for them.
Transient Bug #1
-If you Split Pin any structs instead of Breaking them, Each exposed variable become a transient error. A quick repro is to use the level blueprint and create a few of these split structs and watch your log file. My work around was to go back and redo my nodes to use break and make nodes. This reduced me to 522 transient errors.
Transient Bug #2
-If you use “Blend Pose by Int” inside of the AnimationBlueprint, each blend pin plus any extra that you add creates several transient errors. Currently, I don’t have a work around for this besides not using the nodes.
There are definitely a few other animation nodes that give this transient error which i have yet to track down.
Just to clarify, we started getting these 892 transient text errors only after upgrading from 4.7.6 to 4.8.0.
#Repro
Create a new project, third person template
In the Level BP, spawn an actor on begin play using SpawnActor BP node
Right click on the SpawnTransform pin and select “Split Struct Pin”
Run the game in Standalone with logging active, and notice the appearance of ERR: Transient text cannot be serialized for all the split SpawnTransform pins.
It’s a really simple repro, and the log shows the errors each time you play the game in standalone. If you need a repro project I can supply one
I’m getting the same “Warning: ERR: Transient Text cannot be serialized” over 100 occurrences before my Standalone crashes and starts the UE4 Crash Reporter - with an “Unhandled Exception: EXCEPTION_ACCESS_VIOLATION” as the breaking point.
It was not marked in the release notes because the bug was no longer reproducing in 4.9. When something is fixed, but we don’t know the particular changelist that fixed it, you may not find it in the Release Notes.
