Hi @jhonsonlee ,
Yes, the problem has been solved. There was no error in the first place, it was just me looking at the info log and getting worried, but it was working fine.
Could you please check if sentence1_key and sentence2_key are set as you expected?
What’s more, the code I used is an old one, so if you can tell me which version you are using, I may be able to examine it in more detail.