Do you mean maps or graphs? Weathermap doesn't update rrdtool files (so no changes to modified times) and doesn't care about the poller cache. This seems to be two different problems...
To regenerate a single map, you can use the command-line tool as you have (you need to specify the filenames for the output too, otherwise it uses weathermap.png and weathermap.html, which isn't what the Cacti plugin is looking for).
Alternatively, there is weathermap-cacti-rebuild.php, but that will run all your maps.
You also need to be careful about file permissions if you run either of these as a user that isn't the normal cacti polller user. In fact, you should probably:
1) check file permissions in the output/ directory. Those files should all be owned by the poller user. If someone has manually run the poller as another user, that could have broken your permissions.
2) check the logs. Weathermap writes (usually) useful errors to the cacti.log file in most cases
_________________ Weathermap 0.98 is out! & QuickTree 1.0. Superlinks is over there now (and built-in to Cacti 1.x). Some Other Cacti tweaks, including strip-graphs, icons and snmp/netflow stuff. (Let me know if you have UK DevOps or Network Ops opportunities, too!)
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