Hello!
This may has already been told, but there's a bug with light poles that allows you to easily get lava (at a cheaper price at least). When you remove a light pole you get a lava block instead of the pole itself or just nothing and with some poles you just get a pink light by destroying them.

Here's a video I made as evidence :
https://youtu.be/zJ7S0TWtnDs

This is not an annoying / game breaking bug but as I said it allows to get lava at a cheaper price (900C for the pole instead of 7,500C for the lava source if I remember correctly) which can really help to protect your bases or else.
(btw the poles that give you pink lights are just the 1m and 2m ones, any other one gives you a lava)
And I don't have any mods / other modifications.

Sorry for any grammar mistake I might made, have a good day and keep up the good work, dev!