Current blocking issue: the DSC plugin, which DID work when it was first released, now only registers activity on my motion sensors. See https://community.ezlo.com/t/re-ezlo-dsc-alarm-panel-plugin-is-on-the-marketplace/220141/5?u=ibrewster
Of course, there is also this: Disarmed with code? - #2 by slapfrost, also related to the DSC plugin and this: Correct usage of IP Device Generator plugin? - #2 by Catalina_Granados, related to the IP Device generator plugin, but I wouldn’t consider those “blocking” issues.