I have the same problem in Windows 2022 version. I was able to post the misc. investment expenses by going to the Forms entry mode. Click on Forms on Top right, Select Schedule A, then scroll down to Other Itemized Deductions, and click on the Quick Zoom. Once there, you'll find a variety of misc. deductions you can enter, and any previous deductions entered should already be populated, so be careful not to enter them twice.
