You have a Mapping operator assigned in your tyFlowSimulation flow...not sure why (perhaps an attempt to fix the UVWs?), but the real solution is to disable that Mapping operator, and also disable "inherit mesh UVWs" in the Cloth Bind operator.
That setting assigns mesh UVW values to particle mapping values...but in your case, because you have seams that connect at shared vertices, that is creating stretching artifacts. By disabling that setting you won't have any particles inherit those seam UVWs, and thus no particle will override the base mesh's UVWs with its own (artifact-prone) mapping values.
That setting assigns mesh UVW values to particle mapping values...but in your case, because you have seams that connect at shared vertices, that is creating stretching artifacts. By disabling that setting you won't have any particles inherit those seam UVWs, and thus no particle will override the base mesh's UVWs with its own (artifact-prone) mapping values.