[PROGRAMMING] Hot Reload has been virtually useless since 4.17 - still not scheduled for a fix?

[TheJamsh]

https://issues.unrealengine.com/issue/UE-51994

This bug makes Hot Reload pretty much useless. Any chance we can bump the priority on this? There also seems to be an issue where Hot Reload causes any USTRUCT UPROPERTY's to be initialized to random values on hot reload.

This is a pretty core engine feature, bit of a shame to see it neglected.

[Stephen Ellis]

I don't have any news regarding the issue, although I've shared your feedback with our engineers.

Regarding "an issue where Hot Reload causes any USTRUCT UPROPERTY's to be initialized to random values on hot reload", this one doesn't seem to be known to us. Can you please file a bug report?

https://epicsupport.force.com/unrealengine/s/

Thanks

[TheJamsh]

Hi Stephen, thanks - I will file a report for that.

EDIT: It seems to be related to this issue: https://issues.unrealengine.com/issue/UE-64076

[Stephen Ellis]

https://issues.unrealengine.com/issue/UE-51994

I've got some news on this one now. Our engineer took a look at it to see how easy it might be to fix, and found that the issue didn't reproduce anymore in the 4.21 code. Our QA has now also tested and confirmed the same. The JIRA will be updated to reflect that shortly, but the good news is that 4.21 is coming up soon, and it seems like this one won't be an issue anymore.

Cheers

[Mellnik]

TheJamsh Could you check if this was solved for you in the latest preview?

[TheJamsh]

Not solved as far as I know, but I haven't moved to a preview build yet. On Issues it's marked as "Cannot Reproduce", so if we get a fix now I imagine it'll be by fluke.

https://issues.unrealengine.com/issue/UE-51994

[Mellnik]

There is also this one: https://issues.unrealengine.com/issue/UE-52220
The bug you experience is commonly known. I wonder why there isn't more effort by Epic to fix it.