Global dictionary font size being forgotten or not applying

[Mikeysaur]

Device

X4

Affected Version

v1.5.1-RC4

EPUB Optimization

Yes, using the built-in web transfer EPUB optimizer

Cache State

Yes, book cache (Reader menu > Delete Book Cache)

Describe the Bug

Setting the global dictionary font size often doesn't apply, or gets "forgotten" upon looking up the same word, or turning pages.

Steps to Reproduce

1. Outside of a book in Settings > Reader > Font Options, set the font to GentiumBookPlus, font size to 18, dictionary font to Use Reader Font and dictionary font size to 16.
2. Open a book and look up a word, the dictionary font size is correctly applied.
3. Look up the same word again and it'll be in the reader font size.
4. All other words you look up will now also be in that font size, it's sometimes reset by restarting the device (sleep mode), but not always.

Sometimes also happens when going to the next page and looking up a different word.

Expected Behavior

Dictionary font size is always used for the word look-up screen.

File Provided

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Relevant Log Output/Screenshots