Damage goes through saber blocks

I have had the exact same issues over on the Xbox, with it occurring on every lightsaber character. The character blocks but it has zero effect on incoming lightsaber damage, but I have noticed that whenever this bug occurs the character acts like they've ran out of stamina, despite actually having it.

EDIT: OP is right, this is indeed another BUG, not the one I mention below in my original post

The blocking issue is covered in this report I opened back in April: https://answers.ea.com/t5/Bug-Reports/Disabled-Block-BUG/m-p/6762835

I suggest concentrating disabled block evidence there, and the bug which makes anakin stuck after using Heroic Might here

I'm currently trying to activate this stuck BUG with anakin on purpose on Splitscreen Arcade, but it's not proving to be easy.

The blocking issue you're mentioning is an old bug and can be "fixed" by depleting the hero stamina. Right now, there's another issue where you're blocking (as shown on the last two videos) but the attacks go through it anyway.

The first one with anakin in Yavin can be atributted to you being in a stair, they probably got you from under your block.

The second one with kylo on Kashyyyk it's probably lag, as you started to be hit but when you put your block it was too late. Mind that being attacked from the side can be blocked or be a hit, it's the edge between a block and a hit.

Also, I managed to trigger your anakin stuck in heroic might on purpose: It's the Emperor's Dark Aura. I believe if the first hit (or any hit) of the dark aura catches you just as you are about to unleash Heroic Might, you get stuck. By first I mean first that you take from one use of the skill, or at least first in some time (some effects apply to firt hits in this game, but first hits may be hits done after a long time not getting following hits, like palpatine's 2 handed lightning attack will cause stagger for the first time it hits an enemy, and all following hits won't produce this effect)

The Kylo video might not have been the best example, but it's happening a lot since the last patch (even face to face) and more people are starting to confirm the same issue. As for the stairs on Yavin 4, it never happened before in that place and when it comes to Palpatine's lighting it doesn't matter where you stand, as long as you have your block up, it should work.

You're actually right, despite that both examples could have other reasons. I was reviewing my footage today and I found this bug happening. I was obi, my block animation was working, my stamina was being depleted and my aim dot was on boba's chest, yet he landed several shots on me. The footage is very clear, I'll bring it later. Man, another block bug? This is getting out of hand

Now there are two of them... at least.

Thank you for your help on identifying bugs.

I don't even get the animation. He starts walking slowly like he is blocking but lightsabers doesn't show.

Summarize your bug After using abilities a few times anakin loses ability to block and must die to gain the ability back. Occurs more often around the emperor. Sometimes he loses another ability and only lightsaber works.
What is your gamertag/PSN ID/EA Account name? Amazzyng J Mazz
How often does the bug occur? Often (50% - 99%)
Can you tell us the date (MM/DD/YYYY) that you saw the bug? 03/01/2019
What time did you see the bug? (HH:MM AM/PM) 12:00 pm
In what game mode did the bug occur? Heroes vs. Villains
What is your time zone? PST - GMT - 8:00
Steps: How can we find the bug ourselves? Use abilities and blocks and stay alive for several minutes. After one of the abilities you will lose the ability to block. You won't even raise your arm like you are blocking. It becomes a dead button. 
What happens when the bug occurs?You cannot block. Occasionally you cannot trigger other abilities as if the buttons are dead. It resets at respawning. 

I've noticed during this week game play, when playing as Anakin and depleting stamina all the way down that grey bar goes empty. When the Stamina recharge, block stop work but attacks and ability's work normally.

Edit: Seems to happen with many characters, Obi-wan, Grievous that played with and suffered this same problem, get's bit frustrating have to deliberately respawn so not getting targeted while Blocking is bugged.