Disappearing Class Icons - Bug?

[Mon]

I started my first larger Project with OOP in LabVIEW 2018.

With usage in different applications I pack my Class Hierarchy in a packed library (.lvlibp). Since it's in early development my working day is constant compiling of the library and switching between LV Projects.

Recently, I noticed an issue with the class icons. They randomly seem to disappear or reset to the default. The original icon is still stored somewhere. When I open the class properties and press "edit icon," the original icon reappears (=>see Pictures ). There seems to be no pattern. It's never all of them, but sometimes multiple icons.

They still function as intended, so it's merely a cosmetic issue at the block diagram level. But still really annoying.

Edited November 9, 2023 by Mon
add 4th pic

[Neil Pate]

Unfortunately this is a known issue with recent versions of LabVIEW and will only be patched in 2024 I think.

I will try and dig up more infomation.

[HYH]

Hi

This is an old flaw. It was first mentioned in LabVIEW 2021 SP1, and reported fixed in LabVIEW 2022 Q3 :

 

But apparently not.

Regards 

 

[hooovahh]

16 minutes ago, HYH said:

This is an old flaw. It was first mentioned in LabVIEW 2021 SP1, and reported fixed in LabVIEW 2022 Q3 :

But apparently not.

The word I heard, was that this was the result of a code optimization gone wrong.  NI attempted to add some code that would take shortcuts in loading things, and skipping things it didn't think it needed.  Some of these code optimizations were fixed in 2022 Q3, but others remained.  So I believe you will see the icons get wiped away in less scenarios in later versions, but even the newest public release today may see this bug.  Hope you have SCC and can easily recover them.

[Neil Pate]

There is a public (but not official NI) fix for this, but I have not tested it personally.

https://github.com/illuminated-g/lv-2022-apply-icons

Edited November 9, 2023 by Neil Pate

[Mon]

Thanks!

Unfortunately I'm using LV 2018 and can't switch to any other version.

So I guess the bug was already present back than but not reported...

[HYH]

Hi

It disturbs me that you mention 2018 having the problem.

2018 SP1 is my daily trusted version for whatever I develop, if possible. The last version before NI started optimizing the compiler and who knows what else. And generating problems a galore since then.

I have not myself seen the problem in 2018 SP1.

Regards

 

 

 

[Mon]

On 11/9/2023 at 4:05 PM, HYH said:

Hi

It disturbs me that you mention 2018 having the problem.

2018 SP1 is my daily trusted version for whatever I develop, if possible. The last version before NI started optimizing the compiler and who knows what else. And generating problems a galore since then.

I have not myself seen the problem in 2018 SP1.

Regards

 

 

 

Hmm interesting. I had a newer Version of LabVIEW installed once. Maybe this introduced the bug to the existing LV 2018 SP1 installation.

Perhaps it's time for a clean reinstall of my LabVIEW IDE.