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.
I could imagine that forgetting a NES equivalent of the Famicom's tape recorder thingy must've guaranteed the loss of something like Taito Grand Prix: Eikou heno License (great stuff, as expected) that could round up the racing things allowing save data.
I can't be the only one who's irritated at how Logitech's website suggests Romer-G tactile switches for FPS gaming where I think Romer-G Linears sound like a major step up after getting a feel of the formers in Target... Right?