Progress not working in packaged game

[HephaestusOwl]

Hello, Thanks for your plugin;
widget loading progress works great in editor but in packaged build, progress stuck at zero and the throbber in my widget does not move either, but level loads successfully.
I putted one frame delay between "Create Slate Widget LPT" and "Open Level LPT" to be able to see the widget.
(Tested Windows and Android package using UE 5.7.1)

[Pavreally]

Hi @HephaestusOwl ! Sorry for the delayed reply.

I want to thank you for the feedback — it really helped a lot, since I’m also using this plugin in my own project.

Now about the issue. There was a critical bug related to "AssetRegistry" dependency serialization, which was the source of the preloading asset list. I’ve completely revisited the approach and not only fixed that bug, but also significantly improved how the plugin works overall:

1. LPT no longer filters assets for preloading in real time via a whitelist. Filtering now happens ahead of time — during level save in the editor.
2. Greatly improved safety/support for "World Partition" levels. Now you can specify for preloading only those assets that will be located in the designated regions or cells.
3. Made the filtering list much more flexible. You can now switch modes (blacklist or whitelist) individually for each level.

A lot of time has passed, but just in case, here’s how to use the plugin now. The core principle remains the same, but several new features have appeared:

1. Check your existing LPT functions and recreate them if necessary. I removed the old whitelist approach and moved all settings to "Project Settings > Level Progress Tracker".
2. All plugin settings are now located in "Project Settings > Level Progress Tracker". The system works like this: when you save a level containing assets and the global auto-generation option is enabled, your level is automatically added to the "Level Rules" list. By default (for regular levels), after saving a level in "/Game" (the project’s root Content folder), a new folder called "_DataLPT" will appear (this path can be changed). Inside "_DataLPT", a preloading asset list is automatically created — this data is fully automated.
3. If you want to add exclusion rules and fine-tune asset preloading more precisely, you can do so right in "Project Settings > Level Progress Tracker". Saved levels appear there automatically too, and you can add unique custom rules for each one.

I ran minimal tests of the plugin in a separate project. I also successfully compiled it for "Win64" and "Android" platforms.

There were so many changes and fixes that I haven’t yet tested absolutely every possible scenario. As of this comment, full documentation/instructions for the plugin might still be missing, but I’ll try to prepare them as soon as possible.

The latest actual changes are currently in the branch: "dev/fix_reg_dependencies".

[Pavreally]

Changed the plugin settings:

• In the config "Project Settings > Level Progress Tracker" there are now only global settings.
• Added a button to the Unreal Engine editor toolbar (icon is a minimalist UE level sign). This button creates preliminary settings for the currently open level and allows you to configure asset filtering to include them in the preloading database — if automatic asset list generation is enabled in "Project Settings > Level Progress Tracker".

Improved the UX when working with the plugin — now there are 3 modes:

• Fully automatic and standalone mode.
• Manual asset preloading configuration mode.
• Hybrid mode. You can specify additional asset groups for preloading on top of the auto-generated asset list.

Conducted extended plugin testing:

• Verified progress bar filling on levels of different types:
  • Regular level (Open Level)
  • Streaming level (Load Instance)
  • World Partition
• Tested on the starter project template and on the Lyra Starter Game template.
• Tested on a level containing 7000+ Actors simultaneously.
• Checked all types of filtering, including Data Layer Assets for World Partition.
• Tested on levels with a small number of Actors.
• Verified packaging for win64 and Android platforms.
• Confirmed that the progress bar works correctly after repackaging the game.

The issue has been completely resolved. Merging the branch into main and will continue further improvements in the main branch.