Hi, I have a problem with inherited meta-permission.
when I give the default group meta-permission griefprevention.blocks-accrued-per-hour 0 to limiting the default group could accrued claims block 0/h (could not accrued blocks in fact).
And give the Vip group meta-permission griefprevention.blocks-accrued-per-hour 50 to making the donator could accrued claims block 50/h.
Then I use the /lp user [name] parent addtemp Vip 30d command to add a temp parent group to donator, the donator would have two meta-permissions:

• griefprevention.blocks-accrued-per-hour 0
• griefprevention.blocks-accrued-per-hour 50

And I'm sure that this player could not accrue block, so I guess the two meta-premission may only which inherited from 'default' group's meta-permission has worked.
what is the right way to overwrite the meta-permission between two group?
Should I use that command/lp user [name] parent addtemp Vip 30d ?

I'm assuming your using the add-on, in that case if you look at the config file for GPAccruals
Permission nodes are in the format griefprevention.accruals.<type>.<name> so the node will be griefprevention.accruals.<type>.<name> depending on what you have set in the config

There are no spaces in GPAccruals perm nodes

^ plus:

Make sure you have group weights setup correctly. Meta values are considered in inheritance order, so weights are important. Higher weight number = a higher priority.