Hi Lee,
Thanks for your patience.
We have validated your queries. Please find the details below.
Query 1: Time: There is no custom filter section, only the multi-select. If you set the column type to date time, the date time filters appear but they are not fit for purpose on a timespan
We suggest you to set the column type as DateTime to render the customFilter section and use FilterTemplate in GridColumn to render the TimePicker component.
Query 2 "System.ArgumentException: Requested value 'none' was not found.
Query 3: Hours - Templated - Menu: No idea if this is filtering or not, as soon as you select a value the popup closes and you can't click the filter button
Query 4: if you select a value in the bottom portion of the custom filter builder the bottom operator is cleared
We have considered above queries as bug and logged the defect report. Thank you for taking the time to report this issue and helping us improve our product. At Syncfusion, we are committed to fixing all validated defects (subject to technological feasibility and Product Development Life Cycle) and including the fix in our upcoming patch release which is expected to be rolled out by end of Jan 2022. Until then we appreciate your patience.
You can now track the current status of your request, review the proposed resolution timeline, and contact us for any further inquiries through the below links.
Regards,
Jeevakanth SP.