Group selection fail to operate as expected when working with custom attributes.

When I click on the arrow in the Base Group selection parameter and then hit “9” on my keyboard, it allows me to select based on an attribute. I wanted to select a connected group of polygons by double clicking on it while under the custom parameter selection mode. I have made a parameter “prim_id” based on “primnum”. When I try to double click on my geometry, it selects the proper connect group of polygons in the viewport, but, when I hit “enter” on my keyboard, that full selection is not executed. I expect to see all the “prim_id” selections in my “Base Group”, but I only get my one initial polygon selection. I am working with Windows 10 and I have tested this on two different machines using Houdini 18.0.391 and the latest build of 18.0.596. Not sure if I am just completely missing something, and I am hoping someone could help me. I am working on an HDA, and this selection process is key to its implementation. I have reported this as a bug, but the support representative did not seem to be able to replicate my issue.

Please see video and hip file attached. Thank you.

Definitely a bug, or at least an unexpected limitation. I was able to recreate the problem with 18.0.460, 532 and 597. Using any kind of automatic selection with attribute selection didn't work, e.g. edgeloops and expand selection don't work either. Select by attribute only works with picking or box selecting.

Hi jsmack, thank you for taking the time to check it out! The SideFX rep I have been in touch with just suggested using the Flood Fill feature, which is done by holding down shift + H and then clicking. This worked! I do hope that this is something that can be fixed in the future so that this extra step would not be necessary.