Part update breaks assembly

Without access to your models, it is difficult to explain exactly what you should do to resolve the issue. Change your design such that the "parts around the adapters" are not dependent on the on the adaptor. You have created parent child relationships among the components that create this behavior.

Think about the design intent and build your features and models such that the models behave in a manner consistent with what you want. If you are able to post your models here, then do so. You will get more detailed solutions if you provide an example of the issue.

One suggestion is to avoid deleting sketch entities as that may remove a reference that is being used in the assembly.  Instead, replace it: create a new entity to replace it, RMB on old entity, select Replace, and select the new entity, this will transfer the old entity ID to the new entity and delete the old one.

I also use edit references in assemblies when references are lost.  Select the part/subassembly, select Edit References from the quick access menu, select reference to replace, and select the new reference.

Hi,

This is common behaviour caused by a loss of reference. Creo assemblies are very robust, but there is a price to it. 

In such cases, if you know things will change in the future, it helps to set things on axes, or planes, or create predefined interfaces. 

Cheers!

Hi @HP_13571850,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution. It will help other members who may have the same question.
Please note that industry experts also review the replies and may eventually accept one of them as solution on your behalf.
Of course, if you have more to share on your issue, please pursue the conversation. 

Thanks,
Anurag