We encountered this. We had installed SP26 HotFix 3 directly to a non production environment and we didnt see the Delete button. In our Production environment we saw the Delete button.After testing, we found this problem only happens when an environment is on either SP26 HF1 or SP26 HF2, then upgrades to SP26 HF3. If we directly installed hotfix 3 without installing hotfix 1 or 2 we did not see the issueBlackbaud provided a script for us which fixed the issue