UFO enthusiasts lit over mystery triangular lightning shape

CROATIA/CZECH REP/MARS — Could this this little triangle on a lighting bolt come from another world?

Passed to YouTuber Secureteam10, the image was taken by Instagram user mrslampshade. The triangle shape on the lighting bolt has UFO-enthusiasts intrigued.
The channel featured it in a video earlier this month that's since gone viral.

Some commenters on the video believe the triangle is actually an alien craft, using the lightning as a power source. The location of the video, according to secureteam10, is in the Czech Republic. But a reading of the Instagram post in the clip says it's Croatia.

Those countries are quite far apart, perhaps said aliens were on a lighting-bolt trip around central Europe.

Secureteam10 claims that the image is similar to other evidence they've gathered
They reckon it maybe to do with the energy surrounding Earth. Other users pointed out it's part of the natural pattern lightning forms while striking the ground.