Fallout 4's mod program was supposed to launch this month on PlayStation 4, but it looks like that's no longer going to happen. Developer Bethesda Game Studios wrote on Twitter today that the PS4 mods beta has been delayed, which likely means the public release is, too.

"We regret to say that the PS4 mods beta for Fallout 4 has been delayed. We will update everyone when we can," the developer explained.

The delay comes after Bethesda acknowledged some serious-sounding issues with Fallout 4 PS4 mods, including problems that could lead to memory and performance issues. However, Bethesda provided no explanation at all today regarding why the PS4 mods beta is delayed.

Fallout 4 mods made their console debut on Xbox One in May. Mods are created on PC and then published to Bethesda.net, where Xbox One players can download them. The same setup is likely to be in place for the eventual PS4 release.

In other news about Fallout 4 mods, the game's official mod site recently received a new update that helps make using and posting creations much easier.

The celebrated RPG's latest expansion was Contraptions Workshop, which came out on June 22. Following this will be two further Fallout 4 add-ons, Vault-Tec Workshop ($5/July 2016) and Nuka World ($20/August 2016).