When engraving an odd shaped thing, a mix of text and shapes and telling LB to engrave it all together (i think it’s fill all shapes at once). It seems the logistics of which order things are done is not ideal. It could be this file, as it is a one off, it could be 9.21, but it certainly behaved oddly. Instead of working bottom up, which I am used to, the laser worked seemingly largest area to smallest.
Could be nothing, could be something. I’ll see if i can find a simplified example, but what made me notice is lower parts of text were filled after the center parts.
I know this is hardly enough to go on.