2.19.0.1 migration change dds texture setting unchanged to false

[Lales.Charles]

Hi,

We just observed that data (manual then editor opened) migration 2.18.1 -> 2.19.0.1 changed the dds textures setting unchanged to false.
Required manual intervention and reimport to fix it.
Impacted masks defining vegetation hidden on specific areas..

Regards,
Charles

[silent]

Hi Charles,

We are transitioning to a single runtime format for textures (*.texture) instead of using *.dds. The migration process was likely designed to bypass correctly compressed DDS files and instead compress RGB/RGBA DDS files. However, we overlooked the fact that uncompressed textures may sometimes be used as masks. In such cases, you will need to re-enable the unchanged flag after the migration. 

It should no longer reset if you set this flag in version 2.19.

Thanks!

[Lales.Charles]

Hi,

I had again same issue in 2.19.1.1, reverted .meta to 2.16 content, let the editor load it again.. and back to <parameter type="bool" name="unchanged">0</parameter>
I have to manually add <parameter type="bool" name="unchanged">1</parameter> for the editor in 2.19 to behave properly.

Regards,
Charles

[silent]

If there is a string with "2.16" in meta file, it will be migrated. You don't need to revert anything, setting unchanged parameter manually inside the 2.19.x editor for required dds textures should be enough.