Just tried the white node with a deck including Mortify, Consume, Justice Strike, and Expose to Daylight. All of them fired without a valid target, and when one was available, fired without allowing me to select one.
We haven’t seen this one in a while so perhaps this is an old bug triggered by this event.
It sounds suspiciously like this bug: https://forums.505go.com/discussion/83082/something-weird-in-planechasing-filip-and-other-events/p1
That bug should be fixed with v4.5.
Confirmed in the black node as well. Spells fire untargeted, supports cast ok. AI seems to get all creatures, and player very few. Unplayable this way.
Blue node - Hydroid Krasis fires at full mana, no life gain, 1/1 creature. Skipping this one.
I’ve noticed extremely bad problems with this event today. Aethergeode Miner and Lightning Runner are not triggering on hit (no energy created), Aethertide Whale and Deathlock Trap not triggering on entering (no energy). Deploy the Gatewatch not fetching anything (deck broken). Every node has an energy creation challenge. Hard to complete if you can’t get energy,
HI, no effects are triggered when creatures enter the battlefield. Also spells are auto countered. Already sent a ticket.. 
My matches have been without any issues.
Make sure you have re-loaded your app. If it was running in the background when they did server maintenance then you will see this behavior. This has been consistent since the release of 4.4 and every data push in between.
Every time, a reset has fixed the issue.
@Michael_WC - I’m sorry to report that a reset will not always fix this problem. I have even tried rebooting iOS and still the issue persisted. But it seems to work for some so fingers crossed.
I can confirm that rebooting the app worked for me. I left the app open overnight and noticed the same problems also happening in the Rising Tensions event today and I rebooted the app and everything started working again. I’m on Android though so maybe it works different for iOS?
Interesting, you’re the first I have heard this not working for.
Thank you for the feedback.
This might be the issue with cards not working after the Data Push but we will investigate anyway.
This issue is now under investigation!
@Michael_WC - In this case it sucks to be special. 
We could not reproduce this issue. If you face it again please let us know.
In order to help us, please provide the following information if you have it (you can PM me the answer if you prefer, or send it to Customer Support in-game):
A screenshot of the battle log?
The Planeswalker you were using and its level.
Which Event and Node.
All cards in the deck and possible interactions that might have happened.
Thank you,
Marcela.