We have a Create record trigger that uses a datamap and map the document (file upload field) to other object. It is working properly before but after the update last Saturday, it shows this kind of error. Can you help us fix this issue? What would be the cause and the fixes that we need to do. This is a MAJOR issue in our system.
We get this error because of mismatch security key. We have introduced security key in 4.4.4 version. See the below documentation for more details.
This is fixed in 4.5.3 release
This had been addressed in 4.5.3 release.