In InternetExplorer 11, when {pinnedRight: true} and $ uibModal.open (), the header is shifted and displayed from the rest of the table.

[dalikusong]

plunker: http://plnkr.co/edit/agplB3bsbO7d4CZ6kELA?p=preview

1. Displayed in InternetExplorer11.
2. There are multiple columns of {pinnedRight: true}.
3. A function which invokes the $ uibModal.open () method (of UI Bootstrap) in appScopeProvider is defined. (Suppose this function name is "modalOpenFunction")
4. <a ng-click="grid.appScope.modalOpenFunction()"> </a> is set to the cellTemplate in the rightmost column.

If the above four conditions are satisfied and clicking the item of 4 and closing the opened Modal, the layout of the table will collapse.
For details, please refer to plunker.

The picture shows what happens when Modal is closed.