https://www.sencha.com/forum/showthread.php?305380
When the gridfilters plugin is enabled:
... store={new Ext.data.Store({autoLoad: false, remoteFilter: true})} ...
--> Store loads automatically
... store={new Ext.data.Store({autoLoad: {params:{limit: 1}}, remoteFilter: true})} ...
--> Store loads automatically, limit is default at 15
This bug is not fixed for years now and I am sure it would not take too much time to fix it.
My feeling is that there are only a few conditions missing somewhere in the filtering part.
If you want me to fix it by myself I expect something in reward, as I am paying for something...