Yes we are using GXT 2.2.5 with GWT 2.8.1
We have a custom Grid object created that has an EditoGrid, PagingToolbar, ListStore, ColumnModel and many other properties like height..
I found that the problem is caused by the load method inside the PagingLoader.
we have this line:
grid.reconfigure(store, grid.getColumnModel())
then the following line that causes the error:
loader.load(config).
config is a PagingLoadConfig
I tried loader.load() and loader.load(0.50) and grid.getStore().getLoader().load()
but nothing seems to work.