NSM: drumkv1 replies to open with error

[grammoboy2]

Both drumkv1 and padthv1 replies to 'open' with ERR_GENERAL -1.

[rncbc]

reasons to have that response is something wrong with the "session.drumkv1" (or "session.padthv1") file: it either does not exist, cannot be found, is corrupt or not readable anyhow on the file-system.

[grammoboy2]

It doesn't make the file at launch. When saving drumkv1, the error is gone. When drumkv1 is then stopped and resumed, everything is normal still, no error.

Does drumkv1 expects a file while it doesn't create one?