From HotUtils Discord:
"The client update today seems to be adding some infrastructure to the system to allow for more authentic game client checks, to likely combat cheating in the future. It looks like stage 1 of likely what will be a series of updates. This does not look to be implemented fully yet, and also seems to be android specific, at least this portion.... My suspicion here is they will use this to secure the combat battles in the future."
I think this great mod (unsign version specificaly) is going to suffer a lot from this new secure updates...