With GT++ installed the Alveary Block names seem to mess up. The Swarmer is named as Alveary Frame Housing, the Alveary Fan is renamed to Alveary Mutatron and the rest of the Alveary blocks have names like Alveary 1, Alveary 2 etc. Disabling the compatibility in the config doesn't fix it.

Using Forestry 4.2.16.64 (last ver for 1.7), GT++ compiled from Github on 7/28 and Gendustry 1.6.4.135.

Are custom alveary frames enabled?
If so, they don't work and break forestry ones. Hence why they're not enabled.

If you mean Custom Alveary Blocks then yes. Disabling them doesn't seem to fix the issue.

Yeah the custom ones are broken and I should probably look into fixing them. Couldn't figure out how to add custom ones properly last time.

I got the same issue in GTNH.

GTNewHorizons/GT-New-Horizons-Modpack#1724

It's not a new issue. I'm very aware.

Yes but i ask on Binnies side because i thought it might an issue on thier side (or the devs behind it).
ForestryMC/Binnie#227

Totally unrelated to Binnies.

A temporary fix is deleting/editing en_US.lang to restore old block names. Although the Frame Housing and Mutatron get changed then. Seems like its trying to copy the name of whatever block is Alveary.2 and Alveary.3

Forever fixed in ba6fd91.