So I've installed v3.13.1 and I've got an interesting quirk with the NO-WAIT feature. In the entry below, if I use NO-WAIT:2, it never appears, if I use NO-WAIT:1, I get the "Loading, please wait..." message, but it times out in about 20-30s and vanishes. If I take NO-WAIT out of the line, it works, but it of course pauses the load until it finishes the section. I tried adding the THREAD-TIMEOUT option to see if it was ignoring the listed default, but made no difference.

EDIT: It seems to drop and not return data once the request is finished processing.

CMD=interval:300,color:55cc77,text:WAN Address,onload,no-wait:1,thread-timeout:60,read-as-csv:1,csv-header:1,file:powershell.exe, \
  parameters:-Command "& { %wan-ip-lookup% }",trim:1,show-window:0,hide-no-result:1, \
  display:{{{IPv4: %wan_ipv4%}}}{{{   IPv6: %wan_ipv6%}}}{{{ |Reverse DNS: %wan_rdns%}}}

[wan-ip-lookup.ps1]
## Output headers
Write-Host wan_ipv4 ',' wan_rdns ',' wan_ipv6

Try { $IPv4_addr = (Invoke-RestMethod -Uri  https://ip4.seeip.org/  -UseBasicParsing -ErrorAction "Stop") }
	Catch { Try { $IPv4_addr = (Invoke-RestMethod -Uri  https://4.tnedi.me/  -UseBasicParsing -ErrorAction "Stop") }
		Catch { $IPv4_addr = 'n/a' }
	}
Try { $IPv6_addr = (Invoke-RestMethod -Uri  https://ip6.seeip.org/  -UseBasicParsing -ErrorAction "Stop") }
	Catch { Try { $IPv6_addr = (Invoke-RestMethod -Uri  https://6.tnedi.me/  -UseBasicParsing -ErrorAction "Stop") }
		Catch {	$IPv6_addr = 'n/a' }
	}
Try {
		$IPv4_rdns = (Invoke-RestMethod -Uri  https://ipinfo.io/$IPv4_addr/hostname  -UseBasicParsing -ErrorAction "Stop").Trim()
		If ( -not $IPv4_rdns ) { $IPv4_rdns = 'No record found' }
    }
	Catch { $IPv4_rdns = 'n/a' }

Write-Host $IPv4_addr ',' $IPv4_rdns ',' $IPv6_addr