Hello everyone (: 

Since last Friday we have the following problem in our shop: When purchasing a subscription products (Recharge) and after logging into PayPal, that Checkout starts an endless loop when the customer actually wants to proceed with the purchase. Some background info: 

* This loop ONLY occurs for subscription products, which is why I thought it must be connected to Recharge.
* We did the Recharge Checkout Integration on the 22nd of August
* On the 30th we still got new subscriptions in via PayPal Express 

* Multiple customers over all kinds of devices have complained about this issue and we can also replicate it.
* I've been in contact with Recharge, Shopify Plus, different external developers and they are all not able to give me an indication of the cause of the problem. 

Unfortunately I can't upload a screen recording so here roughly what happens before the loop:
1. I put a subscription product (it only occurs for subscription products) into my card
2. I add my address and proceed with PayPal Express.
3. I log into PayPal, it connects, I am back at Payment-Page of the checkout were I click "Check the purchase" and then "Buy now"
4. After clicking "Buy now" I get redirected to "Check the purchase" and so on... this is the loop, so I never get to actually purchase the product.

If anyone knows this issue, had it before, I am happy about any input or insights. 

Best

Charlotte