Hello,
I'm currently working on Powerapps portal and an entity form needs to have another entity as subgrids.
I have put subgrids on it when I made the form from model-driven app,
and after I connected it to the target view on powerapps portal, it successfully came to be shown on the form as I expected.

The next step is to allow users to CRUD the records.
I made proper settings (as long as I believe) at entity metadata.

At "Item Actions" on Grid Configuration, I put "Details", "Edit" and "Delete" as shown below, and saved it.

After refreshing the portal, the settings were successfully reflected on my portal site once, Yay!.....BUT

Once I reload the entity metadata setting record on portal management, all item actions got automatically reset to "Details".
And the unintended changes got also reflected on the portal site after the next page refresh...

I recheck the setting related access policies but still can't solve this problem.
One strange point is that it actually works until reloading/refreshing the entity metadata setting record after setting it.
I'm waiting for any small tips or possibilities.
Thank you for reading!