No Problem! I think DAS Cancelling being off by default was just an oversight. Initially, the game didn’t have it and I added it in when someone else requested it a while back. I used tetr.io and jstris as a guide to implement it, but didn’t notice that in both games the feature is on by default. I’ll switch it to on by default in the next update.
As for the Dig mode bug, someone else did report it before: https://github.com/mstop4/bomino/issues/4. I haven’t be able to reproduce the bug consistently yet, but since you also encountered it in Dig mode, I know where to focus my efforts in fixing it. Thanks for the bug report!