Does not work in Neovim 0.11.0

[dkaszews]

After upgrading to Neovim 0.11.0, every time I try to run :Ack with any arguments (including none), I see the following error:

Searching...
Error detected while processing function ack#Ack[41]...<SNR>238_SearchWithGrep[12]...function ack#Ack[41]...<SNR>238_SearchWithGrep:
Line 8:
E40: Can't open errorfile C:/Users/dkaszews/Appdata/Local/Temp/nvim.0/Zteqx9/25

Every time I run it, the 25 increases, but listing that directory indeed does not list such files

[dkaszews]

Caused by neovim/neovim#32504