When my tests stop working, I look for something that might be running in the background and hogging up memory that TC wants. Multiple instances of Chrome being open is a typical offender. If nothing else, a reboot can help too.
This also mentions checking available disk space
Thank you. I shall read this. Disc space does not seem like a likely culprit but you never know. I did go down this road before and will look at plus extra space for temporary files during test runs (see below).
Thank you
Look at your object in NameMapping, you need to choose unique properties like 'Id' if possible. Most of the problems are precisely because the object cannot be uniquely identified
