Acking via HTTP doesn't seem to ack

I use a persistent subscription with the following settings:

In my code I ack the message with the following HTTP command:

GuzzleHttp\Psr7\Request {#173

-method: “POST”

-requestTarget: null

-uri: GuzzleHttp\Psr7\Uri {#246

-scheme: “http”

-userInfo: “admin:changeit”

-host: “event-store”

-port: 2113

-path: “/subscriptions/FeedsEvents/FeedsSubscription/ack”

-query: “ids=01fe7e54-d35a-45cd-8622-cfb3ec858122”

-fragment: “”

}

-headers: array:3 [

“Host” => array:1 [

0 => “event-store:2113”

]

“Content-Type” => array:1 [

0 => “application/json”

]

“Content-Length” => array:1 [

0 => “0”

]

]

-headerNames: array:3 [

“content-type” => “Content-Type”

“content-length” => “Content-Length”

“host” => “Host”

]

-protocol: “1.1”

-stream: null

}

``

Which shows the following entry in the event store logs:

event-store_1 | [00001,27,08:17:11.815] HTTP Request Received

event-store_1 | 06/27/2018 08:17:11

event-store_1 | From: 172.19.0.18:35222

event-store_1 | POST http://event-store:2113/subscriptions/FeedsEvents/FeedsSubscription/ack?ids=01fe7e54-d35a-45cd-8622-cfb3ec858122

event-store_1 | Host: event-store:2113

event-store_1 | Authorization: Basic YWRtaW46Y2hhbmdlaXQ=

event-store_1 | Accept: /

event-store_1 | Content-Type: application/json

event-store_1 | Content-Length: 0

event-store_1 |

event-store_1 |

event-store_1 | [00001,27,08:17:11.815] HTTP Response

event-store_1 | 06/27/2018 08:17:11

event-store_1 | 202

event-store_1 | Host: event-store:2113

event-store_1 | Authorization: Basic YWRtaW46Y2hhbmdlaXQ=

event-store_1 | Accept: /

event-store_1 | Content-Type: application/json

event-store_1 | Content-Length: 0

``

So it ends with a HTTP 202 so it seems all is great…

But instead of a log entry that a checkpoint is written, I’m receiving this:

event-store_1 | [00001,07,08:35:42.256] Retrying message FeedsEvents::FeedsSubscription FeedsEvents/

event-store_1 | [00001,07,08:35:42.256] Retrying message FeedsEvents::FeedsSubscription FeedsEvents/

event-store_1 | [00001,07,08:35:42.256] Retrying message FeedsEvents::FeedsSubscription FeedsEvents/

event-store_1 | [00001,07,08:35:42.256] Retrying message FeedsEvents::FeedsSubscription FeedsEvents/

``