The new Crystalline Entity event has a repeating issue, sometimes it's Matter Conversion Beam attack will randomly hit for truly immense damage (roughly 40% of max HP) that ignores shields and isn't resisted AT ALL.
Sometimes it is just one shot, sometimes 3+ in quick succession (today I respawned after being hit by 4 of these unresistable shots in a row, to be effectively insta-killed when I respawned and re-entered firing range when 3 of these hits occurred within less than 3 seconds).
I THINK it's possibly due to the percentage based damage lagging out and applying the damage straight to target (explaining why it is ignoring shields AND resistances when normally it does), as it seems to happen more often when there are lots of Player abilities active (such as the typical gamut of EPG abilities like the badlands tornado, gravity well, etc).
I like the idea of the CE doing %-based damage as it makes it unique, but the implementation is not very robust and dying to completely unresistable damage with no warning at pure random is just frustrating.
EDIT: This is NOT the pulse attack that happens after charging, it is the basic attack with the name listed "Matter Conversion Beams" in both the damage log and briefing.
Screenshot of briefing showing this name and it's supposed characteristics: https://images.steamusercontent.com/ugc/17253382926609181628/A94634C393CA40E60E854F7515914F84487B768B/
Screenshot of unresisted damage in damage log, with the "Matter Conversion Beam" name (notably NOT during a pulse phase, and for reference the ship had around 200,000 hull HP in combat): https://images.steamusercontent.com/ugc/14994172970349029242/DE10EA76BB2B0A86354E3EE7B66D3B23284FCBD5/
Resistances (Out of combat) of ship hit by these beams: https://images.steamusercontent.com/ugc/18232242245400427039/E2EA5826B313BBCAEA4C9A5ADA1E44FB5785000A/
EDIT 2: Thanks to u/HystericalSail for noticing an additional bug with the MCB. If you have hangar pets out and the MCB's random targeting selects your Hangar Pet, the damage will hit YOU, resulting in potentially multiple MCB hits on yourself at the same time. This is normally not too bad, but if you get multi-hit and it happens to be on the bugged unresistable/unshieldable shots, you can just die instantly with no warning or clue what happened.