tAdvEdit - Selection issue using Prefix and Suffix

tAdvEdit (emNumeric) is showing incorrect behaviour when using Prefix and Suffix at the same time.

Selecting with Tab-Key appears correct with AutoSelect active
Selecting with Tab and no Autoselect will show Edit Cursor in front of Prefix text instead of number

Selecting with Mouse using Prefix AND Suffix will place selection after the number,
selection has the same length as the number part in the AdvEdit field.

Using Delphi 11.3 with TMS VCL UI Pack v13.1.1.3