Quite a while ago I started mirroring ltablex.zip because some CTAN mirrors
delivered a zip file with the same contents but a different checksum.
The package build cluster seems to have mirrored one of those "wrong"
versions, and every once in a while I get an email about package building
failures which are actually caused by that.
Work around the issue by renaming the ltablex.zip file I mirror to
ltablex-1.0.zip, which should hopefully make ftp-master re-fetch it.
0df0a6abd3