Memory leak on Linux urbackup client?

urbackup client linux
Univention UCS 5.0-4 Based on Debian is based on Debian 10 (“Buster”)

Everything seems to be working for a bit. Then during indexing RAM usage goes to 100% all being used by urbackupclient. I kill the process and it doesn’t release. I have to: sync; echo 3 > /proc/sys/vm/drop_caches

This clears the cache and frees up the RAM. But when it goes to 100% the system is useless. I have tested this 3 times all with the same results.

Is there a known issue? Is it patched? Is there a work around? I have not run: valgrind to find the leak yet, figured I would check here first.

I tested again today with a new install and only did 6 folders and the indexing used all the RAM again. I did: sync; echo 3 > /proc/sys/vm/drop_caches to release it. It would seem there is a major memory leak in
the linux clients.