NODEMCU LittleFS Bug?

I've been using NODEMCUs a lot lately, mostly with a 1Mb LittleFS partition. Yesterday, I tried increasing the LittleFS partition to 2Mb, but found out using the IDE to upload the files to the filesystem, only 32 files are written. There are no errors produced, but files beyond the first 32 simply do not exist in the filesystem. Not touching the code, do nothing more than reducing the LittleFS partition to 1Mb, and it works perfectly again.

Has anyone else seen this?