I have no idea because all my curation trails have been disabled right after the steemvoter also moved out from steem. I did use steemkeychain before but when steemengine shut down, steemkeychain follow it (same founder). It's really hard to find someone to answer this.

I used to ask to @mahdiyari as the founder of steemvoter at that time, I need to check on my alt to see whether there's an issue or not. I thought I don't even have the key to it anymore. I remember i have joined a curation trail before with my alt accounts. but since everyona in the trails already migrated to hive, seems like it's not working anymore.

I think Power Down is the best option now, because there's no way to stop action which you don't know who control it.