Simple bug, but unfortunately GitHub won't let me create a new branch anymore, so here in quick words:

• Create grid with $grid->addFilterColumn() where one of the columns is a bigint ID.
• FilterModel

  ui/src/Table/Column/FilterModel.php

  Line 52 in 12b9e3d

  $class = [

  misses the bigint type assignment and thus it throws an error.

Just add

            Types::INTEGER => FilterModel\TypeNumber::class,

to $class array and all works fine again.