fixedcolumns, Dropdowns of bootstrap5, cause content overflow

skycyclone

Link to test case:
Debugger code (debug.datatables.net):
Error messages shown:
Description of problem:

When using fixed columns, if the data in the fixed list is the Dropdowns component of bootstrap5, opening the drop-down list will cause content overflow

skycyclone

Sorry, I clicked the wrong submission and forgot to attach the link. Test link:

https://codepen.io/skycyclone/pen/LYJGVYO

Clicking Dropdowns on a fixed column will cause the vertical scroll bar to appear, and it will be blocked

In addition, if a fixed column is used, plus the table-ordered of bootstrap, the header will be misaligned