EOS 5D Mark IV Pixelated/Blank Images in Burst Mode

[FSchleyhahn]

I have a Canon 5D Mark IV and am noticing "weird" images as shown in the attachment when shooting in burst mode.  Is this a sign of a bad memory card?  I'm getting ready to go on a trip and want to ensure I don't have any problems so I'm hoping someone could help me identify what this may be a symptom of.  Thanks in advance for your assistance.

[p4pictures]

I have seen similar issues occur where Lightroom has had some issue reading images - they look similar to what you showed - but I could read them without error using the Canon DPP software. In my case I simply made a good 16-bit TIFF in DPP and imported that in to Lightroom.