In the latest update, virtually all modding tools need an update to work with this version. What do I need to update and what can I update? You can read the patch notes of this update here.
We don't think Rockstar makes these patches to deliberately impact singleplayer modding, however, singleplayer modding can often be a victim of changes Rockstar make to keep Red Dead Online safer from cheaters. Rockstar makes patches to RDR2 mainly to improve the stability and to add content to Red Dead Online. This is expected for game updates, but this particular patch has caused slightly more problems than usual. 31 has caused many popular RDR2 modifications to stop working. Rockstar's latest patch for Red Dead Redemption 2.
