hangs after a while when in i3blocks

[Araly]

I have xtitle -s in a i3block command with the persist interval, and after a couple minutes, it always hangs and freezes on a title, never changing anymore. I tried xtitle on its own and it doesn't do that. all other commands in i3blocks don't have that behaviour.

[lucas-mior]

Same issue here.
I've tried changing the blocklet to:
[window]
command=xtitle -s -t 30 || echo ""
interval=persist
but it didn't help.

[ohazi]

For anyone else encountering this, it's an i3blocks bug: vivien/i3blocks#422
with an unmerged fix: vivien/i3blocks#425