I ran into the same problem after update to V2.14. Even the 2D selection jobs completed previously failed. If I went back to V2.13.2, the old job ran without problem (have not try the new job).
I noticed that the Select 2D job in V2.14 does not open the interactive window automatically (have to click on “interactive” to get it open.
I selected 9 out of 10 classes and the job failed with the following message.