`hold-trigger-key-positions` does not seem to work with `flavor = "balanced"`

[inoc603]

I'm trying to use hold-trigger-key-positions for positional homerow mods on a glove80 and here is my config.

I defined the homerow mods with https://github.com/urob/zmk-helpers like this:

#define HRM_POSITIONAL(tapping_term_ms, keys) \
	flavor = "balanced"; \
	tapping-term-ms = <tapping_term_ms>; \
	quick-tap-ms = <75>; \
	require-prior-idle-ms = <150>; \
	bindings = <&kp>, <&kp>; \
	hold-trigger-key-positions = <keys>; \
	hold-trigger-on-release;

ZMK_HOLD_TAP(hml, HRM_POSITIONAL(250, KEYS_R KEYS_T))
ZMK_HOLD_TAP(hmr, HRM_POSITIONAL(250, KEYS_L KEYS_T))
ZMK_HOLD_TAP(hmls, HRM_POSITIONAL(175, KEYS_R KEYS_T))
ZMK_HOLD_TAP(hmrs, HRM_POSITIONAL(175, KEYS_L KEYS_T))

The homerow mods works except that hold-trigger-key-positions does not seem to provide the corss-hand only behavior that I wanted and the homerow mods applies for all keys on both hands. I've tried with different bidings and without macro but ended up with the same result.

I tried with flavor = "tap-unless-interrupted" and it seems to work. I found a similar isssue https://github.com/zmkfirmware/zmk/issues/2040 but for another flavor. From the discussion there I'd assume my configuration should work with balanced.

My setup is paritially working but there are frequent miss fires. I'm kind of stuck now. Would appreciate if someone can take a look at this or give me some guidance on how to debug the problem.