Just received the following issue:

For a long time I was using the hosts script regularly without issue. Then about 2 months ago I started getting the following error. Using on windows 10 with all updates, script version 1.43.

C:\Program Files (x86)\Unified-Hosts-AutoUpdate-master>hosts_update.cmd
Initializing...
\Unified-Hosts-AutoUpdate-master\log.txt was unexpected at this time.

This is due to the script's path containing parentheses, (x86).

EDIT: @fusionneur also reported issues with exclamation points.