[4.7.6] Blueprint: Inhertited variables can't be accessed

anonymous_user_c0687f281 · May 6, 2015, 10:09am

Hi there,

blueprint editor doesn’t let me access inhertited variables from a parent blueprint:

component is not marked as private or something.

After a few minutes of research and slamming my head into a wall I discovered that you can at least access it by dragging out a pin and type name by hand after unchecking context sensivity:

WTF? Please don’t tell me that this is intended behavior, that would be a disaster for my project as I would not be able to extend base classes with functionality any more then…

anonymous_user_33800a51 · May 6, 2015, 5:05pm

Hi ,

I’m not sure why it would be intended behavior since it seems inconsistent with creating Get nodes for variables referencing components that aren’t inherited. I’ve put in a bug report for it (UE-15065), and I’ll let you know what happens with it.

It’s strange that Getter isn’t showing for you in search with Context Sensitive enabled. Are you searching with underscores? If so, try searching (with Context Sensitive enabled) for “get sm left door” (no underscores, using spaces instead) and see if it shows up. search is restricted to friendly names, I think.

anonymous_user_c0687f281 · May 6, 2015, 5:42pm

Hi , many thanks for your quick response as always.

I am searching exact same phrase in both cases.

anonymous_user_33800a51 · May 6, 2015, 5:50pm

Okay, so I did a quick test in 4.7.6 by giving a parent a Static Mesh with name SM_left_door. In Child BP, I searched with Context Sensitive enabled, and it showed up regardless of whether I used underscores, spaces, or no spaces. Do you have Force Legacy Menuing System enabled in your Editor Preferences?

anonymous_user_c0687f281 · May 6, 2015, 9:20pm

Hi , I copied project over to another machine. On this machine, I get a hit even with context sensitive enabled. Maybe just a broken cache or something?

only difference is, that search doesn’t jump to correct result if I type name of variable exact as specified:

If I type it without underscores, this works:

Without context sensitivity, I get variable as only result:

anonymous_user_33800a51 · May 6, 2015, 9:26pm

Yep, it will highlight closest to what you’re typing, but actual Get node uses friendly name. I’m not sure why this is different on your machine, but my guess is an engine .ini setting somewhere. Did you check to see if Force Legacy Menuing System is enabled on your machine?

anonymous_user_c0687f281 · May 7, 2015, 9:48am

Hi ,

no, its not checked.

anonymous_user_33800a51 · May 11, 2015, 8:17pm

Hey ,

Just a quick check: both of systems you tried this on had same version of UE4, yes? Have you checked this in 4.8p1 yet?

anonymous_user_c0687f281 · May 11, 2015, 9:52pm

Hi ,

yes, they were both 4.7.6. Did a quick check in 4.8.0p1: Same problem here:

It’s not possible to me to drag&drop inherited components to event graph.

anonymous_user_33800a51 · May 11, 2015, 9:56pm

Right, that part we have reported in UE-15065, which hasn’t been fixed yet. At this point, I’m trying to track down what’s causing search issue for you on your system. Does that still happen in 4.8p1?

anonymous_user_c0687f281 · May 12, 2015, 7:57am

Hi ,

yes, it’s no difference to 4.7.6 (searching for ‘get S_switchLightTech’) stops at first hit instead of getter.

anonymous_user_33800a51 · May 12, 2015, 9:50pm

Okay, few more questions:
Does search issue happen with any Blueprints, or only inherited ones? Are Blueprints they’re inherited from inherited from a native C++ class or another BP? If from a BP, please screenshot that BP’s Event Graph with variable selected. If it is from a native class, please give us code where property is declared and set in constructor. Thanks!

anonymous_user_c0687f281 · May 20, 2015, 8:58pm

Follow up: Drag & Drop still broken in UE 4.8.0 P3.

Slavq · June 17, 2015, 2:47pm

Update: Same here, I can’t drag&drop inherited components in official 4.8 release. ‘Cannot place variable “…” in external scope ‘…’’ Update: But it works and i can access it when i search for it via right mouse button click menu - so looks like only drag&drop doesn’t work.

anonymous_user_206c3bb8 · August 19, 2015, 10:45pm

Same here!

davek · August 22, 2015, 9:31am

Is this still happening in 4.9.0 ? Is it worth moving onto that version ? This is a showstopper for me right now TBH.

davek · August 22, 2015, 9:42am

OK guys, literally 5 minutes after posting my previous comment I found a workaround.
Simply drag component into EventGraph from Components section of Variables UI group rather than more obvious component tree above it. That worked for me, even in 4.8.3.

anonymous_user_c0687f281 · August 22, 2015, 2:05pm

… or maybe someone could just fix that bug after more than 3 and a half months…?

davek · August 22, 2015, 2:55pm

Well that would be preferred solution but in its absence this workaround actually works around.

anonymous_user_33800a51 · August 24, 2015, 6:32pm

Hey davek,

This has been fixed for 4.9, and I believe fix has been integrated into latest Preview if you’d like to give it a try. Let us know if you still have this issue (drag and drop, UE-15065) after official release. Thanks!