Unable to delete Invalid Node in BRF+

Hello Experts,

I have applied mark for deletion for few BRF+ objects. But one them is causing problem.

See screenshot below:

As you can see the function node "CHECK_WT_WITHCD" is giving error. It was deleted.

Now to remove this node from BRF+, if I right click on this node and chose 'delete node', it is not getting deleted.

Please guide me how to delete this unwanted node.

Thanks,

Swati