For issues you find with the Switch and Console releases, please follow this link and give as much detail as possible. This is the speediest way to get info to Pipeworks and get a hotfix in the works.
For issues you find with the Mobile 1.3 update, please follow this link and give as much detail as possible. This is the speediest way to get info to DR Studios to look at your issue. Also, some troubleshooting hints here.
If you are using a custom wave bank, then we can't consider that a valid replication of the bug.
However, as mentioned prior, the most consistent working fix for this is to make sure to have a valid audio device when playing (speakers or headphones.
Usually bugs that exist in older versions are naturally going to be found in ports using those older versions. Hand-fixing them in the older versions complicates things and makes a mess of the bug tracking as well as the code, so its to be expected that a 1.3 PC bug will exist on the 1.3 version...