sa-learn not learning after 7300+ ham mails

Hi!
I'm having some issues with sa-learn, i'm teaching with some mbox files to spamassassin, but now im getting:
Learned tokens from 0 message(s) (624 message(s) examined)
No errors at all, when i run
sa-learn --progress --mbox --spam /opt/spam.mbox
My magic says:
sa-learn --dump magic

Code:

0.000          0          3          0  non-token data: bayes db version
0.000          0       3423          0  non-token data: nspam
0.000          0       7341          0  non-token data: nham
0.000          0     118341          0  non-token data: ntokens
0.000          0 1588042800          0  non-token data: oldest atime
0.000          0 1589816001          0  non-token data: newest atime
0.000          0 1589817381          0  non-token data: last journal sync atime
0.000          0 1589814543          0  non-token data: last expiry atime
0.000          0    1382400          0  non-token data: last expire atime delta
0.000          0     164080          0  non-token data: last expire reduction count

Any ideas? Thanks!