I accidentally disabled xmlrpc.php with Better WP Security, how do I undo this?

You should be able to use both plugins on your site. In your Better WP Security options, you can re-enable XML-RPC by following the instructions here:
https://www.ads-software.com/support/topic/better-wp-security-breaks-xml-rpc?replies=6

Once you’ve done so, you should be able to reconnect Jetpack to your WordPress.com account.

Let me know if it helps.

I checked my settings as they suggest, I don’t have the “filter suspicious query strings” option checked, so that must not be the issue.

I just double checked and I have indeed re-activated jetpack and social sharing options in my settings, yet before the sharing icons were visible and now they are (still) not, so something is still off..

I guess I could always just install a different plugin for adding sharing icons to posts, but I don’t want to add any plugins for stuff that’s a core feature already.

Could you post a screenshot of your current sharing settings? You can use a service like https://snag.gy/ to share your screenshots.

Thanks!

This is under “Settings > Sharing”:

https://nimh.nek0kaburi.net/upload/share_settings.jpg

There isn’t much there… Is that what you are looking for?

Thanks! Can you also let me know your site URL?

If you want it to remain private, you can also contact us via this contact form:
https://jetpack.me/contact-support/

Thanks!

Well, I have good news. I’m not sure what changed (or if something I changed 2 days ago just took a long time to take effect) but my sharing buttons have returned as they were before I installed the security plugin.

Thanks for your help!