sabuiltin_ExplorerPlugin.rbxm.ExplorerPlugin Error

Bug Reports Studio Bugs
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1

I launched a playtest then I switched to server view which caused this error to popup
When the error showed up. I wasnt able to expand any of the things in the explorer

Screenshot_9731 (29)
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sabuiltin_ExplorerPlugin.rbxm.ExplorerPlugin.Packages._Index.Explorer.Explorer.Guest.InstanceGuestRPCInterface.Util.getInstanceById:130: Could not find an instance by ID (expanding). If you see this, please file a bug report, we are having a hard time tracking this one down! =) - Server
Stack Begin - Studio
Script ‘sabuiltin_ExplorerPlugin.rbxm.ExplorerPlugin.Packages._Index.Explorer.Explorer.Guest.InstanceGuestRPCInterface.Util.getInstanceById’, Line 130 - function getInstanceById - Studio
Script ‘sabuiltin_ExplorerPlugin.rbxm.ExplorerPlugin.Packages._Index.Explorer.Explorer.Guest.InstanceGuestRPCInterface.Methods.expandAsync’, Line 26 - function expandAsync - Studio
Script ‘sabuiltin_ExplorerPlugin.rbxm.ExplorerPlugin.Packages._Index.Explorer.Explorer.Guest.InstanceGuestRPCInterface.createInstanceGuestRPCInterface’, Line 156 - function guestExpandAsync - Studio
Script ‘sabuiltin_ExplorerPlugin.rbxm.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.DEPRECATED_NetworkedRPCInterfaces’, Line 161 - Studio
Script ‘sabuiltin_ExplorerPlugin.rbxm.ExplorerPlugin.Packages._Index.GoodSignal.GoodSignal’, Line 38 - function acquireRunnerThreadAndCallEventHandler - Studio
Script ‘sabuiltin_ExplorerPlugin.rbxm.ExplorerPlugin.Packages._Index.GoodSignal.GoodSignal’, Line 53 - function runEventHandlerInFreeThread - Studio
Stack End - Studio

Dont know which internal staff member needs this (as stated in the error itself) which is why this report seems lackluster

Place ID: 80968490757242
Timestamp: 20:39:11.173 (Output)
Windows Timestamp: 20:39 GMT+3 (10/07/2026)

If there is an origin on to which staff member needed this Mind mentioning them here Lol

Expected behavior

Well Idk
Probably make it not do this??? idk

1 Like
2

Does this happen consistently (every time you play solo/switch to server)?

3

Only happened once when I switched from Client to Server (in the server here specificaly) (I can confirm cuz i am still in the playtest)

4

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Went back to testing stuff in the SAME playtest and seemingly this began flooding when a sound began spawning (?). I do not know any other instance that could possibly spawn in the scenario this happened in.

This is the client view btw. Explorer works perfectly fine on Client while its broken on Server.
ExplorerPlugin.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.createSession.RootStateUpdating:41: Replacing instance we don’t know about - Standalone
Stack Begin - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.createSession.RootStateUpdating’, Line 41 - function instanceReplaced - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.createSession.createSessionDataModelUpdating’, Line 29 - function instanceReplaced - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.DEPRECATED_NetworkedRPCInterfaces’, Line 156 - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.GoodSignal.GoodSignal’, Line 38 - function acquireRunnerThreadAndCallEventHandler - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.GoodSignal.GoodSignal’, Line 53 - function runEventHandlerInFreeThread - Studio
Stack End - Studio

5

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Also in Server view in the same Playtest when I typed a letter it caused THIS error
ExplorerPlugin.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.createSession.createSessionSearching:251: Found node we don’t know about, this should’ve been pre-populated from newDatums: j$ - Standalone
Stack Begin - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.createSession.createSessionSearching’, Line 251 - function createNodesForSearchResult - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.createSession.createSessionSearching’, Line 346 - function receiveSearchResults - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.Explorer.Explorer.Networking.DEPRECATED_NetworkedRPCInterfaces’, Line 156 - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.GoodSignal.GoodSignal’, Line 38 - function acquireRunnerThreadAndCallEventHandler - Studio
Script ‘ExplorerPlugin.ExplorerPlugin.Packages._Index.GoodSignal.GoodSignal’, Line 53 - function runEventHandlerInFreeThread - Studio
Stack End - Studio