Userwarning messages in cmd when queueing prompts

queued a prompt and this came up..

any idea what this means:

building MemoryEfficientAttnBlock with 512 in_channels...
left over keys: dict_keys(['alphas_cumprod', 'alphas_cumprod_prev', 'betas', 'log_one_minus_alphas_cumprod', 'model_ema.decay', 'model_ema.num_updates', 'posterior_log_variance_clipped', 'posterior_mean_coef1', 'posterior_mean_coef2', 'posterior_variance', 'sqrt_alphas_cumprod', 'sqrt_one_minus_alphas_cumprod', 'sqrt_recip_alphas_cumprod', 'sqrt_recipm1_alphas_cumprod'])
0%| | 0/25 [00:00=t0 but got ta=0.0291675366461277 and t0=0.029168.
warnings.warn(f"Should have ta>=t0 but got ta={ta} and t0={self._start}.")