U+25AA SMALL BLACK BULLET ('▪') is not in Ubuntu Mono, so is being substituted from another font. Long term we can look at adding it, but that probably doesn't help with your immediate issue.
U+25AA SMALL BLACK BULLET ('▪') is not in Ubuntu Mono, so is being substituted from another font. Long term we can look at adding it, but that probably doesn't help with your immediate issue.