Added a vocab to reviews, it's stuck in translation mode

I sometimes manually add vocab to reviews. I added ほぐれる to my reviews, but for some reason even though my default is vocabulary input, it’s stuck in translation review. The option to change it is disabled for some reason.
There are example sentences, so it’s not due to the lack of examples; I even added my own example sentence. It properly worked maybe once? but now it’s turned into this.
PS: I clicked ‘mark as mastered’ in order to get rid of it from my reviews since it was bugged and was stopping me from progressing; don’t know how else to remove it either.

Thanks!