New installation profiles vanish

After creating an installation on the legacy launcher, upon switching back to the latest launcher(green creeper one), the installation will vanish.

Steps to reproduce the error:

1. Create installation on legacy launcher(saving everything)

2. Switch to latest launcher

3. play on the installation on the latest launcher

4. switch back to legacy launcher

5. cry because the installation isn’t there

Expected result:

installation will appear on both launchers

Actual result:

installation doesn’t appear on both launchers