Peter, when I look up my training using BSA’s Training Validation tool, I see, as the first 3 entries, CUB SCOUT ADULT TRAINING SERIES. There is no course code. Dates are 2015-10-22, 2016-07-20, and 2019-02-15. 2015 matches to the “200” series of CS modules; 2016, the revised “200” series; 2019, the CS-19 series. (No entry for the “250” series of 2018.) However, I have no way to access any of these entries, and don’t know what they actually are. I am registered as pack trainer, so they are probably for completion of committee member training. However, I completed training for all CS positions, so this remains unknown.
Using your ID# posted above, your training account also shows CUB SCOUT ADULT TRAINING SERIES, dated 2020-04-23. This matches the date of your DL certificate.
It looks like the system generates an entry for something related to your online training, but does not allow you to access it after the fact.