"still encounter challenges" is correct and usable in written English.
You can use it when referring to a process or situation that is ongoing and has not yet been resolved. For example, "Although we have made significant progress, we still encounter challenges in our efforts to tackle this issue."
Even when drug intake produced anticipated benefits, participants still encountered challenges to their quality of life, with increased treatment side effects being accepted as trade-offs for achieving pain relief from TN (ref 27).
MUC1 as a target for immunotherapy has, however, encountered challenges.
Despite the immense efforts directed toward their development, mAb-conjugated NPs still encounter many challenges and limitations, such as the difficulty or cost of manufacturing, immunogenicity, and penetration into tumor tissues, as mAbs are very large (150 170 kDa, 15 20 nm in diameter) and complex molecules.
"You're defined by what you do when you encounter challenges".
Fast forward 40 years, and though Bangladesh is doing well in water management, it still encounters several challenges in this regard.
Indeed, this select cohort of physician-leaders with unique career development resources from their participation in the RWJF Clinical Scholars program still encountered significant challenges and barriers to their GH activities; these barriers may be even more important to address for physicians who do not have the same resources and skillsets to deploy as the physicians in our cohort.
However whilst children reported that there was much talk about the importance of perfect adherence in the support groups, both support group attendees and non-support group attendees admitted still encountering drug adherence challenges.
The project has encountered challenges.
But LEED has encountered challenges as it has spread.
All organizations encountered challenges.
