Graphing does not save?

Why is it that some of my RBs built in graphing (which is set to “save to disk”) actully saves and some dont? on some i have graphs going back 9 months and others that seem to keep restarting every few days.

They are running 2.9.39, some 2.9.27 that does not seem to matter though. all are rb 532, rb 112s or wrap 2c (does not matter either, the 532 is the only one that keeps the 9 month logs..)

when i say graphing i mean the MRTG like ones that you can access on the local web interface.

i keep my own snmp but those built in graphs are GREAT and really offer a nice quick,accurate view of bw usage.

thanks

anyone? i have some units that save others that dont.. i really need this.

tks

jo2jo,
could you specify graphs that are not saved ?
There will be some fixes for graphs in the upcoming version.