https://community.graphisoft.com/t5/GDL/Updating-a-sub-type-breaks-objects-based-on-it/m-p/326663#M2459 <P>It looks like making any changes to sub-type also changes the GUID, which immediately breaks all the objects that's I've based on this sub-type. Now I have to go through each of them and re-assign their sub-type. Is there any way to lock in a GUID so that I don't have to keep doing this? It's very painful during active development of a library.&nbsp;</P><P>&nbsp;</P><P>__</P><P>Sebastian B - Architect<BR />Toronto Ontario<BR />AC 25 - Windows</P> Mon, 10 Jan 2022 07:58:48 GMT s_p_b 2022-01-10T07:58:48Z https://community.graphisoft.com/t5/GDL/Updating-a-sub-type-breaks-objects-based-on-it/m-p/326663#M2459 <P>It looks like making any changes to sub-type also changes the GUID, which immediately breaks all the objects that's I've based on this sub-type. Now I have to go through each of them and re-assign their sub-type. Is there any way to lock in a GUID so that I don't have to keep doing this? It's very painful during active development of a library.&nbsp;</P><P>&nbsp;</P><P>__</P><P>Sebastian B - Architect<BR />Toronto Ontario<BR />AC 25 - Windows</P> Mon, 10 Jan 2022 07:58:48 GMT https://community.graphisoft.com/t5/GDL/Updating-a-sub-type-breaks-objects-based-on-it/m-p/326663#M2459 s_p_b 2022-01-10T07:58:48Z https://community.graphisoft.com/t5/GDL/Updating-a-sub-type-breaks-objects-based-on-it/m-p/326696#M2460 <P>As long as you don't have objects open that read that subtype when you save it, unless you added a parameter then you have to open and save them. I agree it's a pain.</P> Mon, 10 Jan 2022 13:35:51 GMT https://community.graphisoft.com/t5/GDL/Updating-a-sub-type-breaks-objects-based-on-it/m-p/326696#M2460 SenecaDesignLLC 2022-01-10T13:35:51Z